What is the best way to dipose of my collection?
General mountain dulcimer or music discussions
If you have any truly collectable instruments by known historic makers -- Pritchard, Thomas, Singleton, Presnell, Mize, Ritchie, etc. Make a list, assign a price, and post them here where other serious dulcimer collectors can have an opportunity to enlarge their collection!
Or, pick out those "special" instruments, come here and post a list. Then create a limited time auction post for one instrument at a time....
Make a list of your dulcimer playing friends and acquaintances. Don't ask them, Just "assign" one of your instruments to each person, based on whatever criteria you prefer. Tell them to pick it up or arrange shipment.

says your nepenthes gaya.