350
Scalpers are already selling the Steam Machine for over $3000 on eBay despite Valve's efforts
(www.tweaktown.com)
This is a most excellent place for technology news and articles.
Yep, even Valve themselves told multiple times "it''s just a computer", hence the price that comparable to other prebuild computers. Who in their mind would pay 3x of that?
That being said, Alienware and Razor audience also exists, so anything possible.