Well possibly, not sure many would do it tho. But think of this-retailers adding 3% to their markup to cover cc purchases, doesn't that really screw the people paying with cash? Kind of the opposite as the Aldi deal. And the interchange rate is based on a retailers volume, and if they can get into a group thing, like medical facilities, their rates can decrease. But what you are failing to realize is that they are only paying pennies on a cc transaction. And on that transaction they are most likely making 5% or more profit on the merchandise. When I was running a big truckstop store I had to run merchandise at a 50% markup. Then you pay withing 10 days and get an additional discount from the supplier. Or take 30 days to pay, use their money for the 30 and then pay the bill with the profits. Anyway you look at it, imho, this service fee thing is horsecrap. But if a retailer gives you a $40 dollar discount for paying cash yet it would only cost them $.03 as a cc transaction you are making out big time.