Getting a new furnace and condenser today. I'm guessing they just throw out the old one. Motors run fine (had different problems that led to the replacement). Should I keep parts (almost 20 years old)? Worth selling parts on CL? I'll be honest, I know next to nothing about motors and still learning woodworking. But, I just wonder if years from now I'll wish I hung on to parts. As of now all I'd think of is a home made dust collector to make out of it. Thanks for any thoughts