I think FF has it. people want cars that look like early cars or racers. I think horsepower also sells.
Also, there are so many good reps around now that the amount of choice is very very wide in the 50k to 100K bracket.
And at the risk of speaking heresy, after all, cars built in the 80's and 90's were in reality copies, add that to the current practice by existing builders of registering cars as historic, which ours were'nt, all conspire to blurr the edges.
Buyers market in my view. And fashion seems to be more important than originality right now.
Nick G