I can relate all too well. Currently, I handload well over 50 cartridges, but it is the equipment, supplies, components, casting & swaging equipment, moulds, etc, etc that are the bulk of the shop storage. 60 years of various buying, collecting, range and club pickups (hoarding my wife says), lead collection, etc, etc has amassed a small fortune. It has been a serious hobby and once a secondary business.