Are 800 hats the result of collecting? Or hoarding?

YouTube link.

Some views of her home make it look like a archetypal hoarder's residence.  But what if she were rich enough to own a larger home and be able to store everything properly?  How does one compare her to someone who owns an even larger number of smaller things (thimbles, matchbook covers, buttons, stamps, coins) that fit in a smaller space?

(For a well-informed response to my questions, see the discussion by Mel V in the Comments.)