Get an extra $30 for your trade-ins at Amazon

Game trade-ins are usually only a good deal when you factor in the convenience of not having to deal with eBay -- or when there's a special promotion. This deal from Amazon could boost the value of your trade-ins significantly, if you have a bunch of stuff to trade in.

Through the end of August (it's been available since July 19), sending $60 worth of old junk in to Amazon will earn you an extra $30 to use toward your next game purchase. Hey, something to do with those 40 copies of Rock Revolution you picked up on impulse today!

This article was originally published on Joystiq.