I went in the opposite direction. I put all my stamps (SU or not) into SU DVD cases. In order to get multiple sets into a case and avoid wasted space, I kept everything in alphabetical (only to the first letter). I tried the binder thing and didn't care for it. Love all my stamps in the DVD cases now... All uniform and I can find them and use them easily.
The best part was that I got my cases during SAB so I got free stuff.
Try them in a binder and hang on to your cases. In the end you've got to do what's best for you!!!