PC World selling water cooled PCs...

I was in there yesterday and I saw a water cooled Packard Bell machine. Not something you'd expect to see for sale to the average clueless user but I'd be interested to see who'd buy it. Who sets it up initially, do they tell you how to clean it out every few months and replace the water? I mean at the price it was, 2.5k, no-one who can build their own machine would pay remotely near that, so that really leaves the average user to purchase it. I would have thought water cooling + clueless user is something they'd never have touched with a 20ft stick. ...the scope for horrific accidents, destruction and complaints is unimaginable.