Pattern · Marketing & customer
Bait and Hook
Also known as Razor and blades, Loss leader and lock-in, The printer model, Tied aftermarket. Anchored to Popularly attributed to King C. Gillette; the attribution is wrong., 1904.
Where this is contested
This is the most confidently mis-told origin story in business. Every textbook says King Gillette sold razors cheaply to make money on blades. Randal Picker's examination of the actual pricing records found that Gillette did no such thing during the life of his patent, from 1904 to 1921: razors sold at a premium price, blades were profitable, and the low-price razor strategy only appeared after the patent expired and competitors could make compatible blades. The pattern is real and Gillette is not its author. The entry keeps 1904 as the date because that is the date the myth attaches to, and flags the correction here, which is where this library thinks such things belong.
Sell the durable thing cheaply, sometimes below cost, and make the money on whatever the customer must keep buying afterwards, which works precisely as long as you can stop anyone else supplying the refill.
Plate · The shape
How it works
The model splits one purchase decision into two. The first is visible, comparable and price-sensitive: the printer, the machine, the console, the coffee system. The second is repeated, invisible at the point of choosing, and usually not compared at all: the cartridge, the consumable, the service kit, the capsule.
Customers choose on the first price and pay on the second. That is the whole engine, and it works because the total cost of ownership is genuinely hard to calculate at the moment of purchase, and because by the time it becomes obvious the customer has already bought the machine.
Everything therefore rests on one condition: control of the refill. Take that away and the model inverts immediately. You have sold a durable good below cost to somebody who now buys their consumables from a competitor, which is not a business model but a subsidy. Patents, proprietary fittings, firmware checks, warranty terms and contractual exclusivity are all ways of holding that control, and every one of them is a target for regulators, for third-party manufacturers and, in the long run, for the customer's resentment.
The parts of the model
The bait
The durable item, priced low or at a loss to win the purchase decision. Its job is to be chosen, not to be profitable.
Signals
It is what appears in comparison tables and price advertising · Its gross margin is thin, zero or negative and this is intentional · Sales of it are treated internally as installed base rather than as revenue
The hook
The consumable, refill or service the customer must keep buying. Carries the margin for the whole model and is usually bought without comparison.
Signals
Margin here is a multiple of the margin on the bait · Customers rarely price-check it and often cannot easily · Revenue from it recurs predictably from the installed base
The lock
Whatever prevents a third party from supplying the hook: patent, proprietary fitting, authentication chip, warranty condition or contract. Without it there is no model.
Signals
There is a specific, nameable mechanism preventing substitution · The business monitors third-party compatibles and responds to them · The lock has a legal or technical expiry date that somebody is tracking
The installed base
The population of baits in the field, which is the asset the model is really building. Its size and its consumption rate determine everything.
Signals
The business reports units in service rather than units sold · Consumable revenue can be forecast from installed base and usage rate · Losing a machine matters more than losing a sale
How you know you are in it
You do not fill a pattern in. You recognise yourself in it, or you do not. Read these as a list about your own business rather than as a definition.
- You sell one thing at a margin that would worry your accountant and another at a margin you would rather not discuss in front of customers.
- Your sales team is measured on units placed, and your profit comes from a line they never talk about.
- There is a specific patent, fitting or firmware check without which the model does not work, and you know its expiry date.
- A third party has started making compatible refills, and the internal conversation is about how to stop them rather than about how to be worth choosing.
- Customers who have owned the machine for two years talk about the running cost in a tone they did not use when they bought it.
- Nobody in the business can say what the total cost of ownership looks like over five years, and you would rather customers did not work it out either.
The numbers that decide it
- Lifetime margin per installed unit: the loss on the bait plus the stream of margin on the hook, discounted over the realistic life of the machine. That single number is the model, and any decision made on the bait's margin alone will be the wrong decision.
- Attachment rate: what proportion of installed units actually buy the consumable from you, and how that decays over time. A falling attachment rate is the earliest warning that the lock is leaking.
- Consumption rate per unit per year, which decides the payback period on the subsidised bait. Slow-consuming customers can be permanently unprofitable, which argues for segmenting rather than subsidising uniformly.
- Time to break even on a placed unit. Where this exceeds the average holding period of the machine, the model is losing money on every placement and growth makes it worse.
- The remaining life of the lock, treated as a hard asset with an expiry date. Picker's whole point about Gillette is that the strategy changed when the patent did.
When this shape works
- The refill is genuinely hard to substitute, through patent, technical fit or a contractual relationship the customer values.
- Consumption is frequent and predictable, so the payback on the subsidised bait is short enough to survive customer churn.
- Buyers are price-sensitive on the visible purchase and insensitive on the invisible one, which is most consumer purchasing and a good deal of small-business purchasing.
- The business can fund the working capital gap between placing units and earning back the subsidy, which is a real constraint and is often the reason small firms cannot run this model.
And when it doesn't
- The refill can be supplied by anyone, in which case you are simply selling machines below cost.
- The buyer is a procurement function that models total cost of ownership as a matter of routine, which is most institutional purchasing and increasingly most public sector purchasing.
- Regulation or competition authorities take an interest in the tie, which they periodically do in printing, medical devices, vehicle servicing and agricultural machinery.
- The relationship depends on trust rather than on lock-in, which describes most professional services and any business where the customer would experience the model as being caught out.
How this pattern dies
The lock expires
The patent runs out, the fitting is reverse-engineered, or a compatible arrives from overseas at half the price. Consumable margin collapses while the installed base is still full of machines sold below cost. This is not a risk to be managed at the point it happens; the response has to be built years before, and it usually is not.
Defending the lock instead of the value
Firmware updates that disable third-party refills, warranties voided by using them, aggressive litigation against compatibles. Each move works technically and costs reputation, and the cumulative effect is a customer base actively looking for a way out, which is the most expensive kind of installed base to own.
The regulator
Competition authorities have repeatedly taken an interest in tied aftermarkets, and right-to-repair legislation is moving in one direction across the UK and EU. A model whose profits depend on preventing substitution should assume the legal ground beneath it is shifting rather than fixed.
Subsidising the wrong customers
Units are placed with buyers who consume little, so the subsidy is never repaid. Uniform pricing on the bait guarantees this happens; the fix is segmentation or a minimum commitment, and both are unpopular with a sales team measured on placements.
Being outflanked on total cost
A competitor arrives selling the machine at full price with cheap, open consumables and advertises the five-year cost. This has happened in printing, in coffee and in industrial consumables. The defence is not price; it is being genuinely better, which a business built on a lock has usually stopped practising.
In the wild
Inkjet printing
The pattern's most famous living example, and the one that shows every failure mode at once: cheap hardware, expensive cartridges, third-party compatibles, firmware countermeasures, regulatory attention and a customer base that has learned to resent the model.
Nespresso
A well-run version. Machines widely available at modest prices, capsules protected first by patent and afterwards by brand, retail experience and system design. When the patents lapsed the compatibles arrived, and the business had spent the intervening years building reasons to choose it that were not the lock.
The catering equipment supplier
Owner-managed, UK. Coffee machines placed in cafes and offices at little or no cost, with a contract to buy beans and servicing. The model lives or dies on the contract term and the consumption commitment, and the businesses that get burnt are the ones that placed machines with low-volume sites.
Water coolers and hygiene services
UK, and a long-standing example of the same structure in a service wrapper: equipment supplied cheaply against a multi-year consumables and servicing contract. Worth studying because the sector's disputes are almost entirely about contract terms rather than about the equipment.
The owner-managed version
The version of this that catches small businesses out is the one they fall into rather than choose. You place equipment, absorb the cost of getting it in, and expect to recover it on the servicing or the supplies. Then you discover you have no contract, no minimum commitment, and a customer who buys the consumables from a wholesaler because nobody told them not to.
So if you are going to run this, run it deliberately. Two things make it work at small scale and both are unglamorous. The first is a contract with a term and a minimum, because the lock in a small business is almost never technical and always contractual. The second is knowing your payback period per placement, and refusing placements that will not repay inside it, which means turning down business your sales instinct wants to take.
There is a second and more interesting question underneath this, which is whether you should be running it at all. Bait and hook works by making the true cost hard to see at the moment of choosing. That is not dishonest, and it is legal, and it sits uncomfortably beside a business built on telling people the truth about their situation. I would think hard before adopting a model whose profits depend on a customer not doing the arithmetic, particularly in a small market where the same customers will still be there in ten years and will have done it by then.
The version I have no reservations about is the honest inversion: charge properly for the machine, charge fairly for the consumables, and compete on total cost of ownership with the numbers printed on the page. In a market full of hooks, that is a genuine differentiator and it is a much better conversation to be having.
Changing out of this shape
Getting into this pattern requires the lock before the subsidy, in that order, and businesses routinely do it backwards: they discount the durable good to win share, then look for a way to recover it. Establish what prevents substitution, price the bait from the modelled lifetime margin rather than from competitive pressure, and segment placements by expected consumption. Getting out, which is the direction more businesses now face as locks expire and right-to-repair spreads, means rebuilding the reason to buy the refill on something other than the inability to buy elsewhere: service, quality, guaranteed supply, or a relationship. Start that before the lock lapses, since afterwards the margin funding the transition has already gone.
Where to go from here
Frameworks that work inside this pattern
- Value-Based Pricing
A pricing discipline that anchors price to the economic value an offer creates for a defined segment, with cost setting only the floor, and that tests willingness to pay before launch using tools such as Van Westendorp's Price Sensitivity Meter and Good-Better-Best tiering.
- Unit Economics
Tests whether a business makes money on each unit sold and each customer acquired, tracing revenue through variable costs to contribution and comparing the cost of acquiring a customer with the lifetime value they return. If the unit loses money, scale multiplies the loss.
- Cost-Benefit Analysis
An appraisal method that identifies every material cost and benefit of a proposal, expresses them in money, discounts them to present value and compares the totals, so that options are judged on evidenced net benefit rather than on the persuasiveness of their sponsors.
- Porter's Five Forces
A structural analysis of the five competitive forces that determine an industry's long-run profitability, and therefore where and how a business can defend or improve its position.
- 7 Powers
Helmer's checklist of the seven conditions that create persistent differential returns. Each power pairs a benefit to the holder with a barrier that stops competitors arbitraging it away, and each becomes available only at a particular stage of a business's life.
- Customer Journey Mapping
A visualisation of the end-to-end experience of a customer with an organisation, stage by stage and touchpoint by touchpoint, capturing what the customer does, thinks and feels, in order to find the moments that matter and the points where the experience breaks.
Playbooks that work the problem
- Pricing with Confidence
A sequence for putting a number on your work without flinching: find the job customers actually hire you for, price the value rather than the hours, check the volume the price must sustain, then imagine the new price list failed and find out why before it does.
- Launching a Product
A launch sequence built on one hard-won lesson: work out what customers would actually hire your product to do before your enthusiasm spends the budget. Job, proposition, beachhead, then a rhythm of cheap tests once you are live.
Neighbouring patterns
- Free and Freemium
Giving something substantial away at no charge so that somebody else pays for it: an advertiser, a subset of users who upgrade, or the same user later, which works when the free thing costs almost nothing to reproduce and fails quietly when it does not.
- Subscription and Recurring Revenue
Charging a regular fee for continuing access rather than a one-off price for a transaction, which converts selling from an event into a relationship and converts profit from something you earn once into something you have to keep deserving.
- Licensing and Franchise
Letting other people run your business with their own money, under your name and your rules, in exchange for a fee and a royalty, which turns a system you have proved into an asset that grows without you hiring anybody.
What the critics say
The founding story is false. Picker examined Gillette's actual prices and patent position and found the razor was sold at a premium, not a loss, throughout the patent period, and that low-priced razors only appeared once the patent expired and the blade market opened. The pattern is regularly justified by an origin that did not happen, which should make anyone cautious about the rest of the received wisdom attached to it.
Picker, R. C. (2011) 'The Razors-and-Blades Myth(s)', University of Chicago Law Review, 78(1), pp. 225-255.
Aftermarket lock-in is less durable than the model assumes, because customers are not as myopic as the theory requires. Where buyers anticipate the aftermarket cost, competition in the primary market erodes the surplus the lock was supposed to capture, and the firm ends up with the low bait price and none of the compensating hook margin.
Klemperer, P. (1995) 'Competition when Consumers have Switching Costs', Review of Economic Studies, 62(4), pp. 515-539.
The legal ground is not stable. Courts and competition authorities have repeatedly examined tied aftermarkets, and the direction of travel in right-to-repair legislation across the UK and EU is towards obliging manufacturers to permit third-party parts and service. A business model whose margin depends on preventing substitution is exposed to a policy risk it cannot hedge.
Eastman Kodak Co. v Image Technical Services, Inc., 504 U.S. 451 (1992), on aftermarket power held by a firm without primary-market dominance.
Sources and further reading
- Picker, R. C. (2011) 'The Razors-and-Blades Myth(s)', University of Chicago Law Review, 78(1), pp. 225-255.
- Klemperer, P. (1995) 'Competition when Consumers have Switching Costs', Review of Economic Studies, 62(4), pp. 515-539.
- Shapiro, C. and Varian, H. R. (1998) Information Rules: A Strategic Guide to the Network Economy. Boston, MA: Harvard Business School Press.
- Osterwalder, A. and Pigneur, Y. (2010) Business Model Generation. Hoboken, NJ: John Wiley and Sons, pp. 92-95, which presents bait and hook as a free-model variant.