Price is the fastest positioning to establish and the hardest to escape. The mechanism is straightforward and it operates on both the customer base and the business itself.
The position selects the customer
A brand known for being cheapest attracts people whose main criterion is price. That is the audience the promise recruits.
Those customers move when something cheaper appears, because loyalty to a price is loyalty to a number rather than to a supplier.
The base therefore has high churn by construction, and retention spend struggles against it since the retention argument would have to be price.
It is the easiest promise to copy
Any competitor can lower a price, immediately and without capability. There is nothing to build and nothing to defend.
A position based on service, distribution or design takes years to replicate, which is what makes those positions durable.
Sustainable low pricing is different and rests on a genuine cost advantage, which is an operational achievement rather than a marketing decision.
Margin funds everything else
Price competition compresses margin, and margin pays for product development, service quality and future advertising.
A business with thin margin has less to invest in the things that would let it stop competing on price, which is a self-reinforcing position.
The same compression reduces the tolerance for experimentation, so the business becomes more conservative exactly when it needs new options.
Costs are then cut where customers notice least, which is usually service, and the resulting decline in quality removes the last non-price reason to choose the brand.
Discounting teaches the price
Frequent promotion establishes the discounted figure as the real price, and the list price becomes a reference nobody pays.
Buyers then wait for the next promotion, which shifts volume into discount periods without increasing total volume.
Reversing that expectation takes far longer than creating it, because the customer base has been trained by repetition.
Where the position is defensible
Genuine cost leadership works and is rare. It requires a structural advantage in sourcing, scale or operating model that competitors cannot match by deciding to.
Where the advantage exists, the low price is a consequence of the business rather than a promise made in advertising.
Where it does not, the price position is a claim without a foundation, and the first competitor with lower costs takes the customers it recruited.