I suppose a "historic car" should be called "feature car", the same way as old-school mobiles are called "feature phones".
So, I would argue that "feature cars" are amazing value right now. Even early 2000s or early 2010s are exceptionally reliable (unless you buy a 7-series E65 BMW or some nonsense) and cost almost nothing to run. Much more sensible than paying $80k for a new Tesla, even though it's clearly better and a shiny new toy.
There's a huge middle ground between a 10 year old civic and an 80k tesla.
But they drive so smooth...