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.
Your mistake is in what you are making your comparisons to. You can’t compare your solid wood bookcase to an Ikea cardboard bookcase, you need to compare it to the fancy brands that actually do make things from solid wood.