Mine is when someone takes a survivor in decent condition (especially one that's fairly rare) and rather than just driving it is as-is, they do a 100% restoration on it. It's only original once!
I am 100% guilty of this and God as my witness, I regret it so much. My 70 GTX was such a nice survivor. Really all it needed was the passenger fender painted to match the rest of the car (fender bender parked the car in the 80s).
