$20 Off Resident Evil 6 ($39.99)

Retailer: Gamestop

Platforms: Xbox 360 / PlayStation 3

Link: http://bit.ly/To3A5e 

Poor Resident Evil 6... It went so unloved that not even a month after its release we're already seeing massive price-drops on the game. Oh well, Capcom's loss, your gain. This one may not have been worth the full price, but discounted, it's a little easier to swallow.