> they have to do that to server different segments. No, they don't. That they are able to price discriminate this way is a sign that they are functionally a

> they have to do that to server different segments. No, they don't. That they are able to price discriminate this way is a sign that they are functionally a monopoly exercising pricing power, otherwise, they would be easily undercut in the market where they charge premium prices by a competitor.