About Face had some last fall, but they weren't pet stores. They were farm supply stores, with a generous reimbursement amount for the required purchase, which could be anything the store carried. This was a regional chain of stores, and I don't know if they are where you shop. Intelli-shop had similar shops, again, farm supply shops. But if I recall, it was Intelli-shop's usual very cheap reimbursement. You might be able to get a tiny bag of cat treats for the amount of the reimbursement, LOL!!!!
And don't overlook the usual grocery store shops. Hardware stores, too, carry pet food.
So don't think just pet stores!