As you no doubt sense, hoarding comes in many faces. The overwhelming hoards are one thing, but the ‘lesser’ hoards exists for many as well (tools, lumber, sewing/fabric/quilting, scrapbooking, crafts, fishing, books/magazines, mail, clothing).
My very kind father-in-law has a thing for storage/garden sheds and lumber. My Dad had a similar penchant for lumber, wiring, pipe, nuts and bolts. One never knows when you would need these items to repair, build, patch.
Small hoards or small hoards amidst big hoards, each can have its on makeup or psychology.