I'm giving it serious thought. I have dreams of making a living selling my handcrafted items online, in which case I could live in any state as long as I had high speed internet access.
That would be really cool if you could do it then, I mean if it's literally half the cost to live in a different state then that is a good reason to move.
My gf and I have seriously considered moving to the Southwest. Either Arizona or New Mexico. Beautiful states. Tons of good birdwatching locations. And very low cost of living.
I've heard Arizona is nice. One of my employees went there every year for skydiving and he loved it.