Here is what happens for the Wii (and other consoles in general)
A game gets released for $50, and It typically stays that way for 1 year.
EBGames sells used games for roughly $45 until they collect enough stock of that game to drive a price cut on used games, OR the price of the game new drops.
Typically, when a game drops in price it goes down to $30, but this hasn't happened yet on quite a few launch games.
Prices for used games on e-bay and Amazon typically run ~10 cheaper than EBGames.
Stores almost never sell under MSRP, unless they are running some special deal of the day type thing.








