Okay, then why is AT&T working so hard to get people off of the unlimited data? They either try to switch you to the mobile share or that crappy NEXT plan where you pay full price for an iPhone in installments. It happens every time I walk into an AT&T store or talk to them on the phone.
I know exactly what you mean there. Last time I upgraded when I went from 4S to my 5S, I started the interaction by explicitly stating "I do not want to change my plan I am keeping it the same as it is - I am just upgrading" and they still tried sales pitching Next to me no fewer than 3 times during the process. I basically had to say what part of "I am keeping my plan how it is" do you not understand!?
After a minute, the AT&T rep finally just handed me the iPad she was using and told me to check everything to make sure my plan features were how I wanted it. I made sure all my grandfathered stuff was there and was like OK thanks!
That was back in 2013 though and I'm sure it will be more of the same in a few weeks when I go for a 6S Plus. Kinda makes me wish I could upgrade at an Apple store where you don't get any of that. But oh well.