You can add Beats to the list - a low barrier industry ripe to undercut a premium priced brand, but it has not done so. There is an emotional factor, where cus

You can add Beats to the list - a low barrier industry ripe to undercut a premium priced brand, but it has not done so. There is an emotional factor, where customers associate their own identity and how they see themselves with the brands. That is what allows premium pricing to last.