I run 70's and 80's Masseys. I have to fix them constantly, by myself. The biggest hassle is waiting for parts. The last time I needed a part from an implement or salesman that I couldn't get from a junkyard took 2 weeks for delivery, once they found it. It was 20 days total from breakdown to fix, and all but 12 hours of that was out of my control.
So, put yourself on a broken down tractor in harvest season with rain in the forecast for two days from now. That white glove treatment you get with new machinery looks pretty nice when that happens.
That being said, I agree that people want to complain more than they want to fix anything. I enjoy working with my hands as a hobby, so I'm odd, I think. Most people just want their machines to work, with no inputs.