Here's an idea, it's just something I've thought of from time to time:
(You're not the only one on this bbs who has thought of doing this!

)
I have two collections that I like, one of them has some relatively valuable pieces.
The other is just a shelf or two of similar items that I collected a little at a time.
I've thought about making a quick photo booth and taking a picture of each item, just using a digital camera, storing the images to a file on my laptop. That way, I could dispose of the collections on my terms, giving most away, but trying to sell the valuables for a decent amount, just to have some traveling money, and having a record just for my memory.
It would take time to do, and effort. Maybe you aren't at that place....