AT&T is a for-profit business, not a public utility.

They should show a profit. That's what their investors expect.

You are an educated consumer. You have choices. You can vote with your wallet.

Data plans can and do change. There is no law stating that once a carrier offers (or requires) a specific data plan, that plan must be offered to that subscriber for all time. Just isn't so.

Anyway, all moot.

AT&T can end the grandfathered plan(s) on any device. As can Sprint, VZ, TMobil, and the various little guys. They all have done it in the past, too.