When in comes to collectables, a rule of thumb is prices peak when the children who grew up with the collectable reaches their peak earning years (say 30 years

When in comes to collectables, a rule of thumb is prices peak when the children who grew up with the collectable reaches their peak earning years (say 30 years after age 10). This applies to baseball cards, comic books, toys and video games. But of course, like fine art collectors are incentivized to do standard price manipulation to inflate the price of their collections arbitrarily (which is also useful for money laundering). In other words restrict supply by buying up all existing collections for pennies, and also buying/selling the items to yourself at ever increasing prices.