Man, why don't PC makers

Man, why don't PC makers make machines like the new Apple Cube? Of course, I built my own computer and it's a boring beige box, but that's because I had to cheap out somewhere to remain on budget. Anyways, the point is that if OSX turns out to be as cool as it appears and runs xwindows well (as is promised (by the way, funny sentence from linked press-release: "The new X (pronounced X) for OS X (pronounced 'ten')")), I know what computer I'll be buying next, and I don't think I'll be alone.