Hmmm, I don't see it. Quality will always demand a price.
I wasn't saying it as a slam at all. People are finatics about things and there are people out there that collect FJ's, Scouts, or just about any older/vintage vehicle (EB's, CJ's, Flatty's, muscle cars, etc etc) and because of that there is a premium on their value. If it were a quality thing, I could take a super clean fj40 cruiser and transplant all of it's gear into a super clean CJ7 or bronco 2 and it wouldn't change the value. But the reality is, what was a $30k fj40 would then become a $7k rig, and it's not because the body is worth 20 grand.
Simple supply and demand. There are fewer clean rigs out there of the older vintage, so someone that has an appreciation or some sort of passion for a particular make will pay a premium for a particularly clean one. It's not the quality.
it's like saying a FJ40 guy will pay 4x's book value for a clean 66 mustang just because it's a quality car. Beauty/value is in the eye of the beholder on older vehicles.