The Legend of Zelda: Phantom Hourglass (Nintendo DS)- $15
Check out the "$20 and under" rack and the game aisles. There's more than what I posted including Assassin's Creed 2: Discovery (DS) for $10, Section 8 (360) for $20, and more.
EDIT: I live in Ontario, Canada. I've always known Staples to sell games, but I would'nt know whether or not this is the case in other regions.
Edited by TeaBisquit, 20 September 2010 - 07:39 PM.