Gel Coat on a New Motorhome. Good Thing or Waste of Money?

Sounds like dealer hooey! A coach with base coat/clear coat has urethane clear on it. IMO, paying dealers (car or RV) to put additional paint protection stuff, regardless of what they call it, is simply wasting your money and padded their pockets.

Just put some wax or polish on it once or twice a year and it will do fine.