Can somebody explain to me how is it possible that some cartridge grips are costing us half the price of a decent rotary machine, were are we going with this???

I am not an expert in manufacturing or what not but have been tattooing for a good part of my life and would like some reasonable answers from builders please to help me understand.

I don't want to buy cheap shit from Asia but come on guys, is this getting out of hand just a little bit?

p.s. this is not a rant or bitching contest so HATERS steer clear, I am hoping for honest and professional answers here only please, thanks for your time.