Interesting thread.
I have an opposite "problem" with family "heirlooms".
One of DW's passions is going to garage/estate sales on weekends to look for "antiques" and "fine china" that she thinks are undervalued. It started innocently enough---a little sculpture here, a little painting there---but gradually these things accumulated over the years, to the point that we now have hundreds of this stuff all over the house---in the garage, under the beds, in the cabinets.
I personally hate clutter and I can't stand what seems to be useless stuff all over the house. I told her that the vast majority of this stuff is completely worthless or nearly so, and that in the unfortunate event she departs this earth before me, I will toss out all the "junk" the day after her funeral. Naturally that didn't go over well with her
But she sort of got the message and have recently tried to get rid of some of the stuff by selling them via NextDoor. A few times she excitedly told me that she resold an item for, say, $10 or $20 more than she paid and thus "made money", and I just shook my head.
Aside from clutter, one concern for me is that she actually has a few heirlooms from her grandfather (who was a serious art collector) that are a couple of hundred years old and have been professional appraised. These would easily bring in six figures in an auction. I fear that our kids won't know the different between the junks she's now collecting and the real heirloom items that are valuable, and when we're gone, they'll simply throw them out or sell them on the cheap in a garage/estate sale. We've taken care to label these heirloom items separately, but I can see these things easily getting lost in the shuffle when there are hundreds of other pieces of junk to sort through and they could simply be all lumped together and disposed of by mistake.