If the motor is the expensive part, that makes sense. In a way, that’s still what some cheap crates of DIY equipment do: they have a drill, a sander, a vibrati

If the motor is the expensive part, that makes sense. In a way, that’s still what some cheap crates of DIY equipment do: they have a drill, a sander, a vibrating polisher, etc. that are all extensions around a handle/motor core, and a couple of batteries.