Yeah. The credit card people (MC, Visa, etc) get a chunk (from the bank) everytime you use your card as a credit card. The bank gets one when you use it as an ATM and pay a fee. It's this big battle over who gets the money. I know some small vendors refuse to take credit cards (or make you buy a minimum dollar amount) because of the fees the cc companies charge for each swipe.
(no subject)