Lock-in
Lock-in occurs when the cost of switching keeps customers tied to a product, vendor, or technology even when alternatives exist.
The cheapest customer to keep is one who cannot easily leave. Lock-in is the strategy, and the trap, built on that fact.
Lock-in occurs when the cost of switching keeps customers tied to a product, vendor, or technology even when better or cheaper alternatives exist. Once locked in, customers stay not because the offering is best but because leaving is too painful, expensive, or disruptive.
The sources of stickiness
Lock-in arises from switching costs of many kinds: data and content trapped in a proprietary format, skills learned in one system, integrations built around it, contracts, or the simple disruption of changing a tool everyone relies on. Network effects deepen it further, since leaving means losing the value of a network of other users. Each source raises the wall a customer would have to climb to defect.
A source of advantage
For the firm, lock-in is a powerful and durable advantage. Locked-in customers are cheaper to keep, more forgiving of price rises, and harder for rivals to poach. A great deal of strategy in software and platforms is the patient construction of switching costs, making a product harder to leave the longer it is used, often by accumulating the customer's own data and configuration inside it.
The customer's side, and the limits
Customers, naturally, dislike lock-in and increasingly guard against it, favouring open standards, data portability, and exit options. Firms that exploit lock-in too aggressively, raising prices once customers are captive, breed resentment that erupts the moment a credible escape appears, and invite regulation. Lock-in built on genuine value is durable; lock-in built only on trapping people is a debt that comes due.
Lock-in is among the most important concepts in platform and technology strategy, because it explains why markets do not always reward the best product and why incumbents can persist long after their offering has been surpassed. The art, for the firm, is to earn loyalty while holding the exit, and not to mistake a captive customer for a satisfied one.