Watercooling is just as much form as it is function.
There is a lot of incorrect information on the forums on watercooling, but there are some of us that do know what we're talking about, and most all of us will tell you to avoid a closed loop Corsair cooler and get a good air cooler if you aren't going to go with quality watercooling parts. There is a reason why those coolers are cheap - they have poor pumps and cheap radiators.
sure, but it takes A LOT of time and you need to keep maintaining it constantly.
This is absolutely incorrect.
Good watercooling performs VERY well when done right. It also doesn't require non-stop maintenance like some seem to say...you can go a year or more without doing anything to it, if you set it up correctly.
I know it cools better, but even with standard coolers, it's cool enough anyway so why waste the time and effort for minimal effect on performance?
Because 'good enough' means different things to different people. I would caution you to stop assuming that everyone on the forums shares the same opinions you do.
If you lived in a very large house and had the money to afford a very nice Mercedes, would you own one? Most likely. But it's just a car - a cheap, used Honda could do the same thing. Watercooling is the same concept - if you want something different and can afford to budget that into your build, it is your right to feel that it is important to you.