What the hell you guys talking about? Xbox and PS3 games cost the same, duh! If you're talking about mark downs or used, then that's a different story! To me, the mark downs almost always even out. Sometimes I find Xbox deals and wish the games were PS3 format. While other times I find PS3 sale games and wish they were Xbox format. For used games, I do tend to agree that used PS3 games have higher price. Well, I can't speak for anyone, but I know that if I wanted to retain resell value, I'll go after the PS3 format simply because people are reluctant to buy Xbox used games due to scratch reasons. I stopped buying used Xbox games from Gamestop.
Then I realized the PS3 games are region free (not DLC) so that means I have more purchasing choices. For example, I got PS3's Prince of Persia HD collection for $21 shipped from UK last month (new too). You can't beat that! The whole gaming discrimination thing is outrageous... The only thing I find it discriminating is that gamers from diffierent platforms can't game online together. Portal 2 is the only one I can think of that allows PC/Mac and PS3 gamers to play together.