Sounds like the same old saw that the computer cognoscenti said about desktop computers. From my point of view, I don't give a damn about any of their quibbles-

Sounds like the same old saw that the computer cognoscenti said about desktop computers. From my point of view, I don't give a damn about any of their quibbles---they are either no longer a problem or subject to on-going R&D. What I want is something that allows me to proto-type my ideas. Plastic of any sort is just fine for testing. If it works, I can consider small production runs in the material of my choice. Good heavens, I can even have it cast in gold or sterling silver if I want :) This technology allows me to move from day-dream to reality. If the 'industry' scoffs let them, I'll be busy hacking away...