When I worked at a store with a book section, it was often times cheaper just to eat the mistake than to hassle the customer and pay for return shipping (especially for the store's self published titles).
In fact its probably the cheapest way you can get customer loyalty. If you really take care of a customer, they'll often times stick with you even if you're slightly more expensive than their alternatives.
Comments
When I worked at a store with a book section, it was often times cheaper just to eat the mistake than to hassle the customer and pay for return shipping (especially for the store's self published titles).
In fact its probably the cheapest way you can get customer loyalty. If you really take care of a customer, they'll often times stick with you even if you're slightly more expensive than their alternatives.