A coworker recently told me she too collects and pulled out her phone to show me pics.
I saw a dozen or so red and blue seal bills that she repeatedly called "gift" certificates (rather than silver ). Pretty cool, then we got to the coins, which from what I could see were just a couple of shoe boxes with random piles of coins in them; Ikes, Kennedy halves, a few Mexican silver pieces, aluminum tins with some oddities from her cashier days, but not really very much beyond that, that I could tell. She told me her kids are always curious where she keeps it, like it's a hidden family treasure or something.
Now I'm not here to bash her, but it seems like people's definition of a coin collection varies quite a lot. IMO a "collection" should have some semblance of organization, research and identification with a general idea of value. She simply accumulates unusual coins, which technically makes it a collection I suppose, but it's not what I envision the word to mean.
What do you think?