Indeed, the big $ is in industrial however it is also $$$...

Indeed, the big $ is in industrial however it is also $$$ intensive in capital. Consumer plastic printer a 5 year old concept and unlikely to gain mass consumer product status like iPods etc yet, the technology is not yet there, besides China has already taken a stranglehold in the market. The true bottleneck has always been material (both cost and quality-wise) rather than the printer. I don't hold either A3D or T3D but if I'm to tip in my money in the industry, it will probably be the one with currently higher mcap and targeting industrial use.