Did you just call me a moron because I think Doom 3 sucks? That's okay... After Pam, you are all good to me... 8]
Anyway, at least in Doom 3, they can add a stage where you're out strolling around in a space suit or something in a canyon of some sort to reach some sort of generator, etc, etc. Eg: in KotOR when you had to walk around on the ocean floor to find some injector thingy.
I mean, they could have used some further imagination. I was hoping to see something more, experience something more than solely stunning graphics.