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 ...

Circus Circus has expanded on its status as the only Strip casino still offering coin-operated slot machines by installing $5 coin machines to go alongside its $1 machines. The slots are a throwback ...

Grip the handle and turn the crank. Watch the roller turn. Wait for that clink, reach into the little door. Turn over the still-warm, copper-colored oval in your palm. Smile. It’s a pretty penny.

When the cash registers ran dangerously low of quarters this month, the owners of Fruit Fair supermarket took the drastic step of raiding their gumball machines. They aren’t alone in seeing coin ...

In grocery stores, self-service coin machines—machines that count coins for consumers and offer cash in exchange—can be beneficial for the stores. But for retailers considering placing one in their ...