Also I heard many developing countries buy the products from Chinese Alibaba for the 3d printer. If you go to Alibaba, you will see they may sell more than SSYS and DDD, especially to mid-east and African countiies.
When someone figures out how to make "Powdered Pig" to run in 3-D printers to make "PORK CHOPS-BACON" then they will have a WINNER. 3-D food, corn flakes, potato chips even "Powdered Chicken" for 3-D chicken wings and leg quarters are probably all ready in the works. jmo [heck]
But all these "new developments" in different fields will be like 2d printing, which means, DDD should only sell products, not concern about what people print. Now people trapped into specific applications, away from the earnings. That will be dangerouse, More appications definately means more market potential, but that doesn't means more margins for DDD. and it doesn't means no competions.