Replying to Does Binding DIN Number matter if you're below the max?

I don't really know how to properly word this question, but if you don't need the max DIN setting for a certain binding, does it matter which model you get? For example, I am looking at getting one of the Tyrolia Protector bindings and am choosing between the Protector PR 11 and the Protector PR 13. For my height weight and skier type, my Din is about 7. Would there be any benefit of getting the PR 13 over the PR 11? Are better quality materials used generally in "higher" din bindings or does it really only affect the maximum din setting available?