And also the most likely model to make your business go from $500k/month to $0 very quickly. It won't be a model that I'll pursue, that's for sure.
I don't really believe in "new" ideas, just the repackaging of old ones. Human beings are simple creatures with simple needs and desires, and a strong bias for novelty. I don't think this will ever change, which is why a site like Myspace did so well offering people the online equivalent of being able to decorate their rooms or highschool lockers any way they wanted, and show it off to their friends.
Who else is reinventing the wheel now? Pinterest? I don't see the original thinking there, I see focused re-purposing of existing systems.