I guess that's where I start resisting against water cool - maintenance. All I have to do is pull out my filter and clean it off. I don't even have to shut the computer down if I don't want too. Where as water cooled, require more indepth maintenance.
Personal preference to be sure and I'm not saying one options is superior to the other, but rather I guess I'm wired in such a way, that I'd rather not keep taking draining, cleaning, replacing and filling up over and over. I'm sure its not as bad as I stated, but the air cool for me allows me to obsess on other things