It really depends how you plan on using your skis. The addicts aren't very wide so I'm going to guess that your planning on using them for groomers and park. If this is the case, i would skip the schizos, just unnecessary weight and moving parts. Now if you are planning on using them for park and pow and everything else, then yes they might be worth it for you. But in general, the addict isn't something I would imagine needing schizo bindings.
Take it for what its worth, I have not ridden addicts or schizo, this is based solely on cost vs utility