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A store in New York called VideoGamesNewYork specializes in anything from old Atari to Gameboy handhelds and they are commanding top dollar. Old video games, once relegated to dusty bargain bins, have been cashing in on the nostalgia machine and gaining value just like baseball cards or stamp collections.

Prices skyrocketed almost overnight, says JJ Hendricks, whose site Video Games Price Charting tracks the going rate for vintage games. He estimates the market for retro games is now worth about $200 million annually.

Hendricks once spent months negotiating with a mysterious source in Canada to buy one of only two Powerfest 94 prototypes known to exist. He ultimately made the deal — for $12,000 in cash.

Read more: http://money.cnn.com