Sounds like quite a bargin. For the week of June 8-15, if you buy a PS3 at WalMart, you'll get a $100 gift card. Psst.. MGS4 comes out june 12th.. get the bundle machine
According to the article, the following week the same $100 GC offer will be made for bluray players.
If you were looking to get a PS3 - this looks like a great deal