[Mikes]

the idea behind these machines is that they can make most of their own parts. you still have to buy motors, electronics, and other metal parts. this is supposed to lower the cost a lot. reprap i think is a build it yourself kinda thing. you can buy a kit but you still got to put it together.

Just check the links on the wiki page... there are quite a few vendors who not only sell kits, but also fully assembled ones.
Quite a few modded and upgraded ones too

[S-99]

Computer, i want some klingon blood wine.

[Mikes]

Computer, i want some klingon blood wine.

"Computer, I want an apple" looks like a distinct possibility now...  just don't try to eat it

[LordMelvin]

Tea, Earl Grey, Hot. [8 hours later...] *sip* *gaaaaack!*