As was asked where is your 'domicile'? Where do you vote? What do you put on your tax return? What state do you pay taxes in? Where do you get mail? Where is your health insurance home? Lots of information on Google. Some folks like South Dakota. Others Texas or Florida. Check out the information at the Escapees website. Every situation is different and with the advent of the Affordable Care Act lots of things have changed. It's the whole package not just one piece to get the answers that you want.
What you shouldn't do, in case of accident, is have the TV/TT insured in one place, car and trailer registration in another, license in a third. Wouldn't want to see the outcome on an insurance claim....
2020 Classic 33 Twin, 2019 Ram 3500 Longhorn, ProPride