Much easier to go to T-Mobile since the iPhone woudn't need hardware changes.
Then nobody will get one since there is no coverage in far flung bedroom communities or 2000s built new suburbia, and if you live in an area with coverage, chances are it won't work in any elevators or indoors. Plus TM doesn't do in-market roaming onto the local 800 mhz GSM provider (usually AT&T).
