This will be an interesting few years in 3d printing... Im in a similar industry as far as attrition etc. Enterprise storage platforms see very few "real" contenders each decade. With the advent of SSD over a hundred sprung up seemingly over night. A lot are still around. However i think over the next couple of years they will start to fall by the wayside.
I see 3d printing in the same light. Individuals will continue to make them as kits etc, but i think the number of companies providing printers will fall off drastically.