I will offer my apology in advance, Janet .. although I'd be happy to have you as a sister, I must side with my bro Mike on this issue .. while I agree that your Kindergarten artwork and first diaper may be a bit much ..

.. the tactile feel of some things saved over the years is both a comfort and a time capsule of a life lived .. My personal guitar collection numbers around 30 (which may sound excessive to many, however, is really quite a small collection compared to some folks) .. and it goes back to one of the few I owned back in the 1960's that did not end up in a Pawn
shop in order to feed an addiction ..
Using your "list" I would only qualify for : W = Worthwhile? Do you truly like the item? .. and, as we all know, a person can only play one Guitar at a time as well .. then add in the related and associated equipment that goes with .. the gear, IOW .. and suddenly, you have a room full of stuff ..
My final question would be your opinion on Womens Shoes .. ??

... while I feel sure we have no Imelda Marcos here (or maybe we do) ..