I got this protection with the purchase of my 06 HCH for about $300 (had to talk 'em down).

I had my 03 HCH for 65k miles and was starting to get little rust spots on the front end. I think this could be due to the bad new england weather but who knows. I hardly ever waxed the car. This was the main reason I got the protection on the new car, I figured that the paint finish/clear coat/my use of the car will be about the same.

I don't know if wax can protect against little pebbles hitting the front of your car, a 'teflon coat' at least SOUNDS like it protects better.