Interesting question, and one that I have actually seriously pondered.
Not my "stash" of unbuilt kits, which is very small and of no real value to anyone, but my completed models... in which I have thousands of hours invested. I would hate to think that my models would be sold off in some sort of "estate sale" for pennies. I'd like to think that they are worth a lot more than that, if not dollar-wise, at least sentimentally to my kids.
If I was to pass on, I know my kids would be very respectful of my "stuff," but I don't know exactly what they would do with it. I'm sure they have no idea what they would do with it,
Something to think about...