One reason that I'm actually intrigued enough by them is that they will set up the computer with acoustic dampening (aka inside padding) and liquid cooling, which means I won't have to listen to a small but annoying fan whining whining whining, which honestly in a cubeland environment isn't so bad (white noise kind of drowns out all the voices) but in a nice quiet house puts my teeth on edge.
Hm, Tom's last work computer (before it blew up but good a couple months ago) was Alienware and it was LOUD. SO loud. Like, he had to get a fix within 24 hours loud. He's got a Dell somethin'-somethin' now and he says it's so quiet it practically echos in his office.