I'm not surprised at all that local charity quilt makers haven't jumped on it. They get so much free fabric and someone has to store it. One of my clients had nothing but a trail through her house because she couldn't say no, might hurt their feelings.
You don't indicate where you are, but there is a quilt shop near Denver I think that works like a used book store, you don't get a lot but you get to choose new fabric with your $$.
Good wishes, but just realize fabric from our stash crypt doesn't have much value at all. Couple dollars a pound for the most part.