Hoarders are people who can't throw anything away, who fill up their houses and apartments with (useless) things. https://lemmygrad.ml/pictrs/image/2fb7ffdc-ad2c-4e64-a306-b03c1b619fe5.jpeg
When things aren't "useless" or have some sort of value we call them "collectors". lmao I just realised how funny that is. A person is considered unwell if they fill up their house in disorderly fashion with things with no perceived value, but if someone fills up their house with Marvel toys and displays them nicely then they are a sane collector.