Look at it this way....you love it. You have had it since new, you know the history. Have you enjoyed your time with it? Has it cost you much in repair?
I would think that if it has not cost you a lot of money extra and it runs fine then you likely have got your money out of it. It owes you nothing. I would keep it until it dies. You may very well get quite a few years out of it yet.
Now, if you are set on buying a new one then the obvious is sell it now. How many years do you think you will be RV ing? Will you get your money out of a new one?
