got mine with madden at TRU, buy madden, get one half off. Great game, but PGR is now my style, no more race sims, its just a bad ass game.
long story short, there are deals if you look.
You can try Half.com. I bought Forza2 and Dead Rising together for about 55 bux there. That is if you don't mind slightly used games, but they do sell sealed games too sometimes.