People _hate_ time share hard sells, some people still do them and some people still get suckered in but if you're trying to sell a product and you take the time share hard sell approach you'll scare off customers, even if the product is deserving of their attention. The approach I mentioned might not be the right way, but (for the sake of the free market, why won't anyone thing of the poor free market) we, as a society, need to start pinning the costs of externalities to their benefactors. I think burdening them by removing transferable rights might be a good step in that direction.