Good luck suing them.
Between the arbitration clause and the ruling they got last year from the Supreme Court, we're completely screwed: forget about suing them: you CAN'T, it's part of the contract you signed. State consumer protection laws can't even apply, not even when there is definitive intent to deceive like here.
Yes, you can vote with your money and get another carrier, but they're all the same scam artists. I find it very interesting that all these price increases come in the wake of their failed attempt at takeover of T-Mobile: this is the price of their business arrogance, outrageous salaries for CEO and top brass, cost of lobbying and buying out politicians.
At the same time, this is what happened in France: they were stuck for years with the same 3 legacy carriers (Orange, SFR and Bouygues) plus a handful of MVNOs who offered pretty much all the same contracts at high prices (similar to ours).
Enter Free.fr, who had already revolutionized the ISP market in France a decade ago (unlimited broadband + unlimited international calling to 100 countries + 180 TV channels, including HD, for 30). They only offer two plans, both without commitment: 60 minutes + 60 SMS for 2/month (overage minutes and SMS are extremely reasonably priced, too, not the outrageous $0.40/minute we're being charged here), or unlimited calling (to 40 countries), unlimited texting, and unlimited data with throttling after 3GB... for 20/month. The throttling is not systematic and depends on the current load and system conditions; at worst it's still much better than Edge.
Bottom line, we're being fleeced by the operators, who are charging us this much money simply because they can get away with it. With their insane profits, they pay ridiculous salaries and bonuses to their executives, finance lobbyists and payoff politicians to lock out competition, and they have it all stitched up.
But as long as you're going to have morons like I see here, who keep defending A&T and their exorbitant prices, we're not going to get very far.