Amazon has a deal running through July 11th that if you trade-in $50 worth of games you get 50% off your next videogame or videogame accessory purchase made before August 31st. The only exclusions are consoles and handhelds meaning you should be able get 50% off big ticket items like 120gb hard drives, the SF4 TE arcade stick, the Tekken LE bundle, maybe even the Rock Band Beatles Bundle.
Amazon currently has the trade-in value of Boom Blox Bash Party at $28. Best Buy is selling it today for $30. So if you buy two copies and send them into Amazon, you can essentially purchase a 50% off code for 4 bucks, which could be used to save a ton of money if you're planning on purchasing a big ticket item or new game in the near future.
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