Except I think you can generalise. Grief and loss will be strong emotions. They will probably be stronger than any once-removed attachment that the bereaved will feel for our collections.
I'm not suggesting we shouldn't do what we can to avoid rip-offs but I'm realistic enough to accept that I won't be there to influence decisions and that whoever is making the decisions will do what they will do - I don't want to complicate their decisions with my attachment to my collection whatever that may be whilst I'm alive.
Sell it and make something good out of it for themselves from the proceedings, even donate it but please don't worry too much about it