Usually these types of collectibles go in trends. In the old days I had a few upright arcade games. Super Mario, Playchoice 10, Ms. Pac, Solar Fox cabaret. The market took a big dip when home consoles got really hot. People would say why have one 300 pound box that plays a single game when you can play hundreds from your couch. Seemed valid and I sold them all pretty cheap. Now I see that vintage arcades command some pretty decent money.

I did the same with a Hamm's motion sign collection. Sold it at a low point when all the old timers apparently had acquired the ones they wanted. Prices have gotten nuts on them since.

Jukeboxes took a dive some years back but have been creeping back up.

I guess my point is most things that are interesting and interactive will likely always have a market. Even if hot and cold at times.