Integrated CPU water cooling systems are, basically, a good idea. It can be both alarming and annoying to implement a PC water cooling system - you have to make sure the pipes are the right length, firmly attached and not kinked, use coolant with additives to stop algae growth and/or electrochemical corrosion, and fill it all up and bleed out excess air without drowning your motherboard. And this is if you buy a boxed water cooling kit; if you buy separate parts, you also have to choose or build a water block and radiator, and buy a fan and a pump and tubing and, probably, also a reservoir.
