Hello,
Very interesting post. Instead of trying to reinvent the mouse trap here are some of the modifications that I already use. I put self-adhesive magnetic strips in the bottoms of my plastic Plano boxes. This keeps eveything in it's place especially if it is tipped over. I keep the "dry" packs from jerky or whatever is shipped to me and keep them in my boxes. They absorb the moisture and prevent rust. Also tackle boxes are as good as the person that takes care of them. So in terms of marketing I guess you would have to appeal to the masses. This means something cheap and easy.