30% more tradein credit at GameStop for Steam gift cards during Steam's Summer Sale
Even GameStop's getting in on Steam Summer Sale madness, with a deal to entice you into turning your boxed games into downloads. For the duration of the Summer Sale (through July 23), any game traded in at GameStop will get a 30% boost in value if used toward the purchase of a Steam gift card. Of course, you'd likely get more of a "bonus" for just selling your games on eBay or something, but GameStop seems to have caught on out of convenience anyway.

GameStop started carrying Steam gift cards in May. The future is a weird place. These are definitely two topics we didn't expect to intersect.

This article was originally published on Joystiq.