Now on sale for $1300
The question is: how much do the printer cartridges cost?
http://www.cnn.com/video/?hpt=hp_c3#/video/tech/2012/03/31/nr-kaye-3d-printer.cnn
>cartridge
spools of plastic that feed into the printer:
http://store.makerbot.com/plastic.html
I'm not sure what else is a consumable in 3D. My guess would be that the "print head" wears and has to be replaced periodically.
I'm waiting for the printer model that can handle 4-color objects.
I think this one does...they made a little model of the newcaster's head, and it was full-color.