Also a lot of builders order the motors to spec. So the price you see might be 50€ but when you upgrade the end bearing for prolonged use or upgrade to a sealed autoclavable motor ( yes some have an option for this ) the per unit price jumps quickly. Then if you may have to import the motor to where you build it, that adds customs fees. Also any euro motor you see tge price for may be without tge mandatory vat. Here in Germany that is 20%. So factor all that in and most builders are selling the motors at or just above cost. Not to mention that they are usually upgraded from stock. Besides how often do you kill motors? I have back up machines not motors.