True. there is other consideration as well though. like time. I did a quick calculation of my capacity at home and it is app one piece pr hour plus removing prints and setting up again every 6 hours, so it would be a few days to print them. Casting and injection molding is a lot faster. There is also the strength of the parts. even though 3d printed parts are surprisingly strong, injection molded parts are stronger. but I agree, I could probably have set the numbers even higher