Gotta love that marketing doublespeak, trying to make it sound like it's for the customer rather than their bottom line.
> (...) requires us to keep costs as low as possible.
Sounds pretty to-the-point to me. Remember that for 'budget' stores and chains the bottom line should translate directly to customer benefit (ie. lower price).
An added anecdote: I've run a startup with high-priced goods/services with low profits and card expenses are a huge PITA and will cost you a considerable amount of money.