I have a friend with so many hand-painted canvases she now hangs them on her walls. Unstitched. Of course, it's her sewing room walls. But they are still beautiful. And now she feels less guilty about having so many because they are wall art.
I only have 4 hand-painted canvases so I don't have a tremendous storage problem. They are about to go into my newly purchased basket with my collection of blank canvas. I just need to store it high enough so as not to attract rubbing cats.