I've sold hundreds of date matched wheel sets and the buyers tend to often be guys who have bought fully restored cars but that have many reproduction parts. In their quest to make the cars their own and to make them more original guys will buy things like date matched wheels.
Date matched wheels are not for everyone. I get lots of calls from guys who freak out over the price for a set, add to that they have to have them restored, they balk. I explain that they aren't paying for their set of wheels, they are paying for the wall of wheels that made their set possible. In order to build the date matched sets I have to buy every wheel I can, which means thousands of wheels. It's a system that works, but it isn't cheap to do, therefore the wheels aren't cheap.
---Adam