And also - I know bikes all eventually need servicing, but outside of a new tire, chain, bar tape and brake pads (and replacement cleats for shoes) none of my bikes have needed spare parts and they are almost all over 10 years since I acquired them.
I really wish there was a way to get it across the general public that adding complexity to a bike does not in fact make them more enjoyable to ride, but in fact make them more frustrating to own.