Melissa, I have a few (no, not giving numbers - blushing) unquilted tops, and an WIP collection that could keep a whole quilt group busy for years. If in 50 years time somebody finds any of my unfinished quilts, they are very welcome to finish them in whatever way they see fit; and then use and enjoy the finished piece.
I would only make an exception if the unquilted top has provenance, like you can proof that it was pieced by President Garfield's wife, or lovingly hand-sewn by Marilyn Monroe (with pictures of her working on it whilst getting ready to sing for JFK). Then I'd donate the piece to an appropriate museum.
Please, keep taking pictures as you turn that top into a real quilt, and share them with us. I find this whole feedsack concept fascinating. As a German living in the Uk, I had never heard about that before I started quilting.
Lorchen, When I was a little girl my mother made all my summer sun suits, she called them, out of feed sacks. Although I don't remember other clothes I can picture the prints in many of those pieces of clothing. I also remember the texture of the cloth. It was coarser than store bought fabric. I must have been 4 yrs old. My brothers raised chickens, hence the feedsacks from chicken feed. I also had rag doll made from a pattern printed on a feedsack. I remember seeing it before and after. I remember it looking alot like today's cheater cloth before it was constructed. Your comment jogged a memory. I guess I had a fascination for all things fabric evn when I was a very young child.