[MRM]

Vintage electric train sets. They were extremely collectable and raising in price yearly until abut 5 years ago. The baby boomers who wanted them as kids or wanted to share the one they had with their grandchildren started dying off and the younger generation has no desire to have a heavy metal electric train that takes up a whole room to set up right.

I also agree on early 20th Century cars, and probably for the same reason. When I was a kid a Model T was collectible. Now its barely worth the cost of storage. Each year it seems that another generation of older cars falls from being collectible to the "just old" category and a newer generation of cars that were popular when this year's crop of 45-60 year old men were in high school becomes the new collector car class.

I graduated from high school in 1983. It's not a complete coincidence that I have a 1984 911. I grew up dreaming about SCs and Carreras and the Carrera was the newest and most expensive Porsche I could afford when I was able to afford one. I suspect that's the sort of thinking that drives a lot of collecting.