Ok, point taken. At idle, air cooling can be as quiet as watercooling. Not gonna argue. But I wasn't talking about idle. Crank up a game to it's highest settings, do some benchmarking etc. The air cooled PC will make noise, the watercooled one stays pretty much the same. Is it worth the extra cost? HELL NO! I think that is more the question we need to ask, not if air is quieter/better or not.