Well, it depends on what is stored. It’s quite possible that people could be hoarders behind the scenes without realizing it by holding onto junk in another location. You do however, have to move your possessions to the location, so it takes a bit more effort than standard hoarding. Some things may have justification for being stored away for years, such as fishing equipment, a jet-ski, or maybe baby furniture/stuff for that other kid you want, but can’t afford or have space for at the moment. You may also just have moved to another location with less storage space.