If you are considering one of the new iPhones, spend a minute walking through this carrier-by-carrier list of deals. Most notably this beat all trade-ins, match all deals offer from T-Mobile:

America’s most iconoclastic carrier is promising to beat any iPhone trade-in deal offered by AT&T, Verizon, or Sprint. Find a better value for your old phone than T-Mobile is offering, and they’ll match that deal and give you a $50 credit toward your bill. Plus, switch from your old carrier to T-Mobile and they’ll also give you up to $350 per line to get you out of your old contract.

The company also just announced that certain models of its phones—including the iPhone 6—will be able to make calls and send texts over Wi-Fi. And for frequent flyers, any plane with Gogo Air Wi-Fi will give free access to T-Mobile users starting September 17th.

Note that AT&T now charges a $40 “upgrade fee” if you want to buy a new phone on an existing contract. Odd strategy, considering how easy other carriers are making it to switch and how easy Apple makes it to move from one phone (back it up) to a new one (restore from backup).