When and how much I don't know, but at some point the collector car market will take a downturn. This is a time when the cars were special to people who were teens, young adults back in the late 50's to the mid 70's. They either got good jobs, had inheritances or made good investments. Many are retiring, receiving their inheritance or selling off their investments for that last "Harrah" in life. But the economy has faltered not too long ago and it is faltering again. Many of the Boomer generation have retired, seen their parents pass and many of the inheritances have already passed hands.
Like all things one year the tents of Barrett Jackson will be half empty and reserves not met. The next time there will be no reserves. Trailer queens will be relegated to garage space or turned into occasional drivers. Grand kids will be selling off their grandpa's Hemi Cuda's so they can buy their prized items, first generation I-Phones and Play Stations. As my luck goes this plunge in prices will coincide with my license being taken away.