I was never one to buy multiple games at the same time, but if you don’t mind adding to your backlog in the name of penny pinching, Amazon is currently doing a “buy two, get one free” promo.
Most of the games are on or around their suggested price points, but the selection applies to many platforms and includes newer releases like The Legend of Zelda: Ocarina of Time 3D, Oblivion 5th Anniversary Edition, The Witcher 2: Assassins of Kings, Resident Evil: The Mercenaries, and DiRT 3.
Personally, I’m still holding out for a discount on Shadows of the Damned.