Ok....I have to disagree with some of the logic here...

Lets say you have two identical cars, both RESTORED equally yet one has lots of documentation and the other has none.

Are you saying both cars have the same value?

I don't believe so....

In fact if I had a very rare unique car and someone one offered to sell me the original BCS I would gladly pay a reasonable amount for it, same as a numbers matching engine or transmission, because in my opinion, all those things add value to a car.