So what is to be learned here by EVERYONE, manufacturers included, is 3d printing is NOT the be all end all of manufacturing processes. It is just another way to manufacturer things. And every THING has it's own best way of being manufactured. What I believe CA is pointing out is that to force 3d printing with metal is the absolute most expensive way to work with metals, but what he isn't saying is that is is also the absolute WORST way we could ever work with metal and will always bring us to the absolute weakest product possible. Which totally flies in the face of working with metal in the first place. To play with plastic we 3d print. to work with metal we CNC. and if you confuse the two, well, you get exactly what you deserve in life for being so, … you know.