I will be retired before 2019. When I retire I will look closely at the benefits  versus costs of maintaining residency. I have talked to many in my age 
group,that tell me there are states that even give tax breaks to seniors just to have them spending  money in those states.  Seniors  usually are low maintenance and contribute  to the medical businesses. We hear about job growth in the medical business here in Alaska, but high taxes will curtail that  I know a few seniors now birds that tell me they get most of their medical work done in the lower 48 because it is a lot less expensive