I once had a bad fan on my heat pump (bearings went bad). I went in to replace it, but none of the local motor suppliers, and nobody I could find online, could

I once had a bad fan on my heat pump (bearings went bad). I went in to replace it, but none of the local motor suppliers, and nobody I could find online, could offer a replacement. It was a fancy 2 stage motor, I guess... So I called the big plumbing/heating place in town. They came in with a $750 quote to replace it, but they said: "It's not currently failing, but when we're in there it's usually a good idea to replace the contactors." I asked how much that would be. He looks up in a table "$375". "For a relay?!?" I later looked up the contactor price and it was less than $20, and it'd take me less than an hour to replace it, maybe 5 minutes "while I was in there".