I didn't understand how it's wasteful to get a different used unit, not buy another new one. If someone is going to chuck it anyway, how is that waste? Folks post on our local ride group a lot "come get this if you want it, because next destination is the waste bin".
I appreciate the resourcefulness, but don't agree that anything is being saved.
Local bike Facebook group or Craigslist, $30, done. No waste. No more trips around town hunting for parts or fluids or what have you.