The greedy keep moving on, to big blocks muscle cars, Ferrari's, basically whatever niche they can ruin. Many of them car not a whit about the cars themselves, only preening about it one for a drive or two, and then making a "killing" by reselling it.
Then you get the auction mills like Mecum, who have helped turn affordable middle class classic cars into toys for the a bunch of self absorbed jerks who don't know a thing about them. Not all of the industry is bad - and you have to have free enterprise. But it has gone from an enjoyable hobby to "big business" - and that has been ruinous.
