Not disaagreeing. It is possible to print useful plastic items. But what I found interesting when doing the research for a product we where producing, was that

Not disaagreeing. It is possible to print useful plastic items. But what I found interesting when doing the research for a product we where producing, was that the price per item on a €1800 3D printer was about the same as producing them in quantities up to 2500-5000 units in India. The difference obviously was how many you could produce in a month, and higher quality from the injection moulded stuff. I had expected the price difference to be more. In the end we didn’t go to larger volumes due to weak interest in the product. The main benefit, as you point out, was the fast turnaround in prototyping.