@ReaderJohn Debit cards are much cheaper for the merchant, so they can choose to pass that along. Or not. (Some of the low-margin places where I shop offer a small discount for using a debit card, or waive the usual fee they charge for credit cards. Most other businesses seem to find it better to just charge everyone the same price and eat the fees. Especially the high-margin businesses: They don’t want customers to be thinking that hard about prices.)