I believe The Library Poilceman's idea is better suited than most realize. I've got two young adults, in their mid-20's, and when asked who would prefer the collection, I got shrugs from both. Books, and collecting in general, don't seem to be of much concern to this generation, at least from what I see, and I think it's more because of the digital age. My daughter, however, specificallly requested my pistols.
If I don't make it around to selling my small, modest collection, I'll probably leave it to Betts.