Back in the 1920s, it seemed everything was becoming coin-operated. All over the U.S., you could find coin-operated weighing machines at railroad stations; coin-operated vending machines were chock ...

Coin-operated machine supporters pressed state lawmakers Thursday to see the virtues of a new option to award gift cards as winnings instead of just lottery tickets, gasoline and in-store merchandise ...

Coin-operated karaoke machines are exploding in popularity. Seoul, South Korea -- A dollar can buy a pack of gum, a can of soda or a bag of chips. And in South Korea, it can buy an opportunity to sing ...