I think people who are into crafts. They have all of these yarns, construction papers, various tools and stuff. All so that they can say that they have all of these projects in mind that they want to do. But they never do them so they get more crafting stuff and it just eats away storage until their place is practically consumed by it.
Pinball. Because a lot of the classic pinballs are 25 years plus old they tend to have extra of everything in case something breaks.
If you own a pinball machine, you have a whole lot of other stuff too. Ramps, decals, balls, fuses, you name it.
Plus hardly anybody who owns pinball machines owns only one. Four or five seem to be the norm, and I know several people who have a house with 20 or 30 in it. That’s 20 or 30 full size pinball machines in a normal house.