Regarding beans and legacy, the goal for an existing, extensive collection to move forward as a single entity is ideal. But as commented by others, there are challenges to achieving that by individuals. I think duplication has huge advantages, and I will try to share every variety that I grow for you, Russ, through Seed Savers Exchange and elsewhere. You might consider bequeathing a sample of all your beans to them as well. Maybe even contact them with the idea, and give Network growers the option of sending samples back to you AND to SSE. Over time (the many, many years you continue operating the current system

) a gradual transfer will have taken place. I think SSE collaborates with another seed bank in Europe, (maybe Norway?) to maintain diversity. As I read the bantering on this forum, clearly sharing among and beyond Network participants is actively ongoing.
Are there other organizations with a more bean-specific mission, with established funding streams? I'm just brainstorming here. But I do think it's an important discussion to have. As small as my own seed collection is, and as far from demise as I assume I am, I work to share seeds as widely and often as I can.