Customers could earn an escalating amount of food based on how much money the spent, a sort of edible pyramid scheme.

When we wrote about the campaign, industry watchers told us that it was not a loyalty program, but rather a retention program.

“If I look at my daily relationships as merely transactional, I wouldn't have a lot of friends.”

While, yes, a punch card does lead to repeat purchases, loyalty is much more than transactional.

Are you more or less likely to frequent them if you don't have the punch card?

A simple punch card or other type of volume discount can feel like a chore; for example I have to buy six more sandwiches to get my benefit.

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