How can Ray Ban charge unfairly for their prices when you have literally 100's of other non Ray Ban options in any sunglasses store? If brand is that important to you that you feel like you have to buy them and you then overpaid for them I would say that's some pretty sweet branding at your expense.

Because Ray Bans parent company owns all the other brands in the store and also likely owns the store itself.

I have no idea if that's true or not but assuming it is then it's not really a Ray Ban discussion. It's a "state of health of the sunglasses market" discussion.