My house came with a large high quality washing machine from the 80s I’m pretty sure, or maybe even earlier. It crapped out at some point last year, and we were about to buy a brand new appliance, but I did some research, got out the multimeter, and was able to diagnose a blown fuse caused by a faulty part (replacing the fuse just blew it out immediately). I ordered the part online and installed it and now the washer has been fine since then. I don’t think this would have been easier with a newer part.