I once took a F/A jumpseat leaving RNO after the air races. There was one non-rev behind me who was going to get on if I took a jumpseat instead of a pax seat.
Gee, let me think, I can take a middle seat 3/4 of the way to the back of the plane, fight for overhead space, sit there squished between two probably large people and be miserable the entire way back to ORD. OR, I can sit in the nice spacious aft galley of that brand new 737, have all the legroom in the world, nobody elbow-to-elbow with me, and not be asked a bazillion questions about being a F/A........
I'll take the jumpseat for $500 Alex!
The other non-rev thanked me up one side and down the other for doing that "for him". I tried to tell him I really much preferred the jumpseat to where he was going to have to spend the next few hours, but I don't think he believed me. I guess it was win-win for both of us..... He got home and I got to be comfortable!