So, let's see. Last time the rates were raised was early 2008. We don't have inflation numbers for all of 2015, let alone first quarter 2016, so let's say 2007 to 2015 instead. (2007 had low-ish inflation, ~2%, unlike 2006 which was quite high, so it's an appropriate place to start.)
$30 in 2007, adjusted for inflation, becomes $34.41 in 2015 to date. AT&T has raised the price to $0.59 more than it was in 2007. Assuming they don't raise it immediately again, by the middle of next year, it will again be cheaper than it was in 2007.
I mean, God, I'm as much against the crappy telecom companies we have in this country, with their ridiculously high oligopoly rents and their terrible service as anyone else is, but to complain about a $5 price hike on a product that AT&T doesn't even want to offer any more, which barely covers inflation, is to miss the point so severely that I'm not really sure that it can be adequately communicated.
(And I must say that the decision to not let T-Mobile and Sprint die is looking smarter every day. Actual price competition! Who would have imagined THAT, seven years ago? I just wish that T-Mobile or Sprint were a reasonable option for me...)