I built an Ultibot for my home workshop, and mostly use it to replace broken parts on things like baby gates, print useless animals, and prototype parts for my RC aircraft and OpenROV. At least as the quality now stands, I don't really see people convincingly reproducing things like art toys (though there are some munny .stl files already available online). You can use acetone vapor smoothing to get a shiny, injection-molded surface quality on ABS prints, at the cost of some detail, but the truly great printers are still 10k and up. Vapor smoothing is how they made a smooth barrel on that first, functional, 3d pistol. Projection-cure printers like the Form 1 have a material cost for UV resin of over $100/liter , which is not to say that they aren't awesome, regardless! I bet that the cost of a good machine would offset the profits of a bootleg operation. On a side note- 3d printing in concrete on a giant scale has the potential to improve quality of life for povert stricken or disaster areas. http://www.gizmag.com/custom-3d-printer-concrete-castle/33577/
