[bigger_inside]

also strangely missing from this discussion about the supposed outrages of pricing when you round, and losing 0.1 or 0.2% in cash payments, is that credit card companies will charge that gas station is a bit over 2%. So no matter what coin you abolish, the gas station comes out on top on the cash payment, even if it's the quarter. It'd still come out on top if it was the dollar bill/coin for bills under $200, so, pretty much always.

[zamadatix]

It's more "already handled" than missing. Gas stations already often advertise a cash price and paying by credit gives you a higher price which includes the markup. It's perhaps the most commonly used type of business that bothers to do this because the margins are so thin.