Jacquie:
I think alot of it is in the eye of the beholder. Bloomington has been trying to get the All Survivor Show off of the ground the last two years and I have participated in both because I think this is an important aspect of the hobby. The first year, I brought a 4,300 mile 1973 Formula Firebird that was in "as delivered" condition. It is nearly perfect. Last year, I brought a 1967 GTO Convertible with 34,000 miles that has had a couple of blow-ins. However, it still has it's complete original drivetrain, interior, top, glass, trim, etc. I don't believe that anyone would want to restore that car.
They were cars and they got driven. The roads of America are not exactly the best place to preserve a beautiful antique. But some of them survived. Wear items not always excluded. My 72 8,800 mile Corvette still has original tires, belts and hoses. My 4,259 mile 65 GTO is virtually untouched including the tires. But the shocks are leaking and it has a Gardner Exhaust.
JMO, Ed