Mm, I wish they'd stop using ~70mm fans for one - the amount of noise the stock X4 955 cooler can make is absurd. I replaced the one in my girlfriend's system with an old Cooler Master 92mm contraption, which is dead silent in comparison.These closed loop WC solutions are not much better than the high end air coolers anyway, if better at all that is.
Why not just include BETTER Air coolers?
Surely using a WC bundled cooling solution limits your target users in that not 100% of cases are suitable for rad mounting? If it really is that much of an enthusiast chip that you need to model most of your system around the chip (Read case as well as mobo) then why include anything at all? Let the buyer implement their own custom loop, pick their own closed loop solution or decide if they prefer to use high end air.