Are prices way down on classic muscle right now?

I don't think we should judge prices by what goes on at the auction houses.I think private owner sales tell a better tell.More real world for guys like us.
What goes on at places like Barrett-Jackson is high rollers most of the time.I watched a Classic car dealer buy a clapped out 70 318 Challanger for $17,000 with 4 mismatched tires and a rusted out gas tank and quarters.I asked why? He stated "Because I can. "
The last time I was there a few years ago, one guy bought 53 cars and never batted a eye.In 2006, same guy bought a custom bus built for some 50's World Fair and paid 6 million for it.Six years later I read that it was sold at auction again for a little over $100,000. I guess it was "Because I can" again.