If all you care about is gaming, why are you looking at Macs in the first place?
Hell, why are you looking at computers?
Get a PS3, 360, or Wii.
Well pc games are easier to patch, easier to mod, easier to expand and I can much more easily adjust graphical and other settings. I greatly prefer the keyboard/mouse interface to a standard controller and I can upgrade my components without a great deal of difficulty. Not to mention some of my favorite games are pc only (the gothic series comes to mind).
Not only that in my narrow generalization usually there are only a few types people who use macs non-professioonally. Snotty preppy kids with rich parents, unemployed artists, and the socialist college types you usually see discussing Chompsky over organic fair trade Vietnam coffee in your local starbucks or Panera, and the insane vegan I work with.
and to Bloody Sam that movie is hilarious its been around for awhile but it has yet to make me stop laughing.