Plus if you like to go to LAN parties, it's not a practical system at all to lug around.
Ehh, have you ever had liquid cooling and gone to LANs? If not then you shouldn't be making comments you know nothing about.
At the LAN party my friend holds monthly, he brings two water cooled computers, both of which he took to the newegg LAN an hours drive away....I also bring my water cooled tower, also took mine to the newegg LAN, and theres one other guy at the LAN who was watercooling with 2 more people to look into putting it in their system.
Sooo yeah, basically I'm going to say your statement against water cooling is completely wrong.
well depends on what liquid cooling system, nubius told me that its not worth it to buy one under 250 or so.
nah you can go cheaper than that, $250 is basically if you wanted CPU and GPU as well since both blocks are $50 then you need a $75 so theres $175 right there...it'll hit $250 depending on what heatercore or radiator you went with and how much of the expensive tubing you get, etc..etc..
As far as upgrading goes, nothing stops your upgrading dude. Switching out cards would be kind of a pain assuming you wanted to try and get the GPU block off without emptying the liquid in your system which is indeed possible if you're careful.
It will keep your parts significantly cooler though....basically you'd never have to worry about heat being a factor with the GPU or CPU assuming you had both cooled.