Not sure how this analogy works at all. Beanie Babies and baseball cards were collected in hopes that the crazy prices would continue so the buyers could sell them later and retire off their proceeds (not anything like crypto . . .). Pinball machines are purchased, for the most part, because people enjoying playing pinball or like having a game room with a unique item in it. Yeah,pinball might decrease in popularity for whatever reason in the future (maybe even price of entry), but it's not going to be for any of the reasons that the beanie baby and baseball card market crashed.