http://www.solidoodle.com/
Well, this is something. I'm told the resolution isn't quite as good as what people are building on their own. If you just want to buy a printer at a reasonable price, here you go!
For me, the journey is 1/2 the fun, and buy building a printer, I will feel like I "own" it in the real sense of understanding exactly how it works. (Still waiting for Hadron kits to be available).
David