I wouldn't rent mine...EVER! I would lend it to a friend in need...but it would have to be a VERY good friend that I trusted a lot. Can't imagine letting a first timer practice by driving my motorhome or pulling my trailer. Have you seen some of the tailgating, weaving idiots on the road? Want that guy to drive your motorhome?
Your insurance might not cover damages if you rent the unit to someone. You would have to check into specific business coverage. It's no longer private owner use if you rent it. It's commercial use.
All that being said-if you can TRULY make money on it, I'd do it. By truly making money, I mean paying for the unit in full, covering commercial insurance costs and net of expenses such as maintenance, tags, etc. The only way for that to happen is to buy it REAL cheap, screen your renters, charge a hefty rental fee (and not split it), and have it rented so often you don't get to use it yourself.
2006 Ram 2500 CTD
2011 Sabre 31RLDS