Oh yes.
I'm looking at restoring an old Gottlieb 1973 Pro-Football. Not because the game is great, far from it, but because I have had this machine since I was about 15 years old. Me and my friends played it to death in our teens, literally till I didn't know how to fix it anymore. During the early 80s it was a big deal to have a pinball machine at home. (My parents got if for free).
I'm happy to restore it knowing it will never sell for what I spend on it.