Looks like google predicts the end of model trains

[ezdays]

What's true is that many have thoughts of their childhood about the time they hit middle age, and have the cash to relive those days. This is true with most hobbies and just owning toys that they grew up with. I learned this by watching shows like, Antique Roadshow, Pawn Stars and Pickers. As Mike says, interest wanes around puberty, and picks back up in their 40's.

What bothers me with those Google charts is that under "Related Terms", missing is, "Train Forums"... Maybe I'm misunderstanding what kind of terms they're talking about.