The other option would be to go with this instead of a binder:
http://www.amazon.com/Itoya-Profoli...p/B003H71EJOItoya 90 page (180 pocket) art portfolio. It lies completely flat, pages won't rip at the ring. It doesn't hold as much as a binder does, but I think it would be a cool way to collect your stamps if your collection didn't involve too many countries.
I think I may buy one just to try it out.