The other thing is that many states have gone to taxing visiting players, so the difference in tax is only about half the actual state difference.
As someone who works in many, many states per year - the home state do credit back taxes to other states. And most companies will gross you up to pay the difference in states without income tax (possibly doubtful for NFL contracts).
The measure of who we are is what we do with what we have.
Vince Lombardi
"Not really interested in being a spoiler or an underdog. We're the Green Bay Packers." McCarthy.