Sticker shock
There is a bit of sticker shock on this that will likely keep me from buying one. However, a similar windows system (e.g. the dell Studio Hybrid) will cost as much or more, at least in the US ($689 with same processor, RAM, etc). And, 4GB memory limit and Intel Integrated graphics on the Dell. Also no VGA support which, while outdated, is still in use. Finally, the Dell is ugly as pus. Somewhat better warranty though....
I don't doubt that the system is worth the price, I just would have preferred a cheaper option. I just want a media server to hide under my TV.