I don't know about that TBH. If the "golden Era" cars weren't worth what they are now, I don't think they would be nearly in demand as they are.actually...the hype for the golden era cars is more so because the people that wanted them and could not get them back then have grown up and finally have the money to dish out for them. i got my itr before market exploded and it was a car i was always after from back in the late 90's
There are a bunch like the 300Z, MRS etc etc that simply no on gives a F about (well they kinda suck also). But the ones that are popular now are all massively appreciating assets.