And others have said that the kids like the older subjects and need to be exposed to them, but I can't see that being a viable business model--- maybe a small subset of young people are into the past, but I can't see young people en masse being interested in model subjects (or 1:1 cars) from their grandparents era.
I know there are far fewer adult and child 'car guys' today (interest in cars in general pretty much goes hand in hand w/ interest in model cars) than when I was a kid in the '80s, but I would think the majority of younger people that are into cars would be more interested in modern cars and modern subjects rather than obscure subjects from the distant past.