Hi, I really don't know what kind of non-profit would purchase this .org. I think you are going to have a very hard time finding an end user, and a re-seller will pay very little for this reason. I'd say if you get an offer for $100, you should take it, if not, then I think you'll be better off dropping it.
Pickaxe.com could be a brandable name for a company, but I think even that would have a hard time finding its buyer.