Originally Posted by Woodelf
AA & AF are big issues because they are the first thing's turned off when a new (performance taxing) game comes out. Been dealing with that for a while, and will again. The next game to come out that really taxes our performance will again result in AA & AF being turned off first. Why, because that's just how important they really are. To me, a decent amount of default filtering and no AA at 1280x1024/960 are just fine.
Thanks for getting back on topic.
I honestly believe that AA and AF are the new 32-bit color. They are taken for granted and are part of the gaming experience now. I see most game engines and game designers accounting for performance with AA and AF enabled. Hence, the games now control settings like AA and AF. To coin the ad slogan, "The way it's meant to be played."
That said, Doom3 does look great with out AA, but I think that is mainly due to the darkness of the environment.