I just watched a video on how these items are made with the 3D printer. You need material to print out your object layer by layer. So I'm assuming the bigger printers that print out more than neti pots or bunny rabbits will cost you over 10K to begin with. Just imagine trying to print out motor vehicle parts such as tires or combustion engines. It would take mounds of material, energy and you'd still have to have the technical-know-how in order to assemble these products. This will not destroy manufacturing at the level that it's at currently, but perhaps in the future this technology will be upgraded somehow.