Coins: the busy work of business, that's why they mostly switched to credit cards, for similar logic you're using regarding pennies. Stores don't typically rai

Coins: the busy work of business, that's why they mostly switched to credit cards, for similar logic you're using regarding pennies. Stores don't typically raise their unit prices when they decide to accept credit cards; they benefit from efficiency (and lack of theft) and receive more volume in sales as a result.