yeah, most times you see a insane perfect shot with super samping crysis or w/e, the game probably runs like poop. Even those videos that show off insane crysis physics are often filmed choppy, then edited to seem like it was running at a smooth frame rate. That stuff is nice, but it isn't really why I like playing games on PC. I prefer to have smooth performance over raw visual quality and will drop some effects if needed to get 60 fps (or at least above 30). I think a smoother frame rate affects gameplay more and is one reason why the CoD games are so popular; MW2 is super smooth and responsive compared to the average game.
I'd actually prefer it if more devs would focus on maintaining a minimum of 30 fps on consoles over pushing visuals. I think Remedy is smart if they chose to drop the resolution for Alan Wake in favor of a smooth frame rate. I mean, Uncharted 2 is a special case where it seems near flawless visually, but for as much praise that Killzone 2 gets, at times it can get really choppy. Then there is Heavy Rain with absurd tearing and frame rate problems, Banjo Nuts and Bolts, Mass Effect 1, etc. Like, textures in Mass effect 2 are kinda bad but it runs so much better than the first game on both PC and 360.