I, too, would recommend that you "get your feet wet" first. I think it is great advice to rent a RV a couple of times to see if it is for you.
Mary Lou Scanlon
NCL Pride of America April 24, 2010
NCL Epic February 12, 2011
RCCL Allure of the Seas - September 18, 2011
Celebrity Eclipse - February 11, 2012:
RCCL Navigator OTS - February 9, 2013