I wholeheartedly believe that when you give something away it belongs to whoever it was given to, to do with whatever and however they wish, Now with that said knowing families and quilts and how they are perceived I think I would ask Aunt if she had a preference, maybe even one of her children would be interested in it, if there was no interest there, then by all means I would donate it or find a home for it that will put it to use.
I also Love Lori's suggestion.....