I felt the same way when I installed Rage

I can't run any other games with high geometry and huge open maps unless I tone everything down to make them look like crap. I simply couldn't believe that my PC could run such a beautifull game at almost 60fps constant, and I still can't believe it.
idTech5 is so f*cking amazing, I laugh at games that take loads of power to run their graphics, games that people have to upgrade tons for to play on max. Heck, Rage to me on 800*600 (biggest textures though), looks better overall to me than Skyrim at its highest (imo, let's no start a flame war), as everything in it looks top notch and uniform, except the blurry mountain tops and little decorations.
Anyway I can't wait to play more idTech5 games. Less power for more power, FTW!