A little different perspective here from someone who "bought" the pitch, thinking I could go five years without applying wax.
A little postmortem research confirms most of what was said here. It is a polymer finish, which does last longer than wax. But it will not protect your finish for five years. It is essentially an insurance policy.
My fiver is usually parked with the front cap facing the afternoon Florida sun. After about 14 months, I noticed the paint beginning to fade. I took pictures and sent them to Caltex, who was the service/product provider. I got repair estimates ($3000 to repaint, redecal the front cap). To their credit, they sent me a check right away, even though I expected a hassle.
Since it took six weeks to repair (most of that time waiting on decals from Forest River) I asked the body shop manager for advice. His advice, wax it yourself at least once per year. I will probably put on a second coat in the fall, and then go to once per year.
Bottom line, spend $20 on Nufinish, or some similar product, about six hours of labor, and save the $1800, plus the hassle of getting it repainted.