What makes you think that the paint isn't sealed from the manufacturer? Don't waste your money or your time having the dealership install paint sealant. It has already been done when the car was built. Just wash and wax. That's all you need to worry about.
Getting paint sealant from the dealership on a new car is as bad an idea as having the dealer apply Scotchguard or rustproofing to a new car.
I agree. You shouldn't need sealant on a brand new car. I have used sealant, but only after using abrasive (however slight) scratch removers and polishing my clear coat. The brand I used was Klasse and it was very good.
I'll chime in...I love P21X wax, it is all natural carnauba without any other messy junky, pure and clean and it doesn't leave the nasty wax buildup the way that commercial liquid waxes do. I'm a fan of it, plus the finish is stunning.
A discussion on waxes and polishes is just like a discussion on oil- everyone has their favorite. For car shows I have used Zaino products, lot of work but on a dark car the shine looks deep. Zaino doesn't hold up on my daily driver car which in the winter gets run through car washes frequently. For the everyday cars I use Meguiars products. Their Gold Class work fine for me. I also have some of their professional paste but that really needs a buffer.
I would have to agree with those above, these paint sealants that dealerships sell are all a scam: EVERY ONE OF THEM !! If there were such a thing as 5 or 10 years sealant the manufacturer would be the first to offer it. Stick with a quality polish and you can't go wrong.