Trying to remember anything I've paid for at the dealer that was overpriced...
Smokin' deal on a new 2005 Quest - Check
Smokin' deal on a new-but-sold-as-used 2005 Titan - Check
Competitive prices on preventative maintenance - Check
Excellent service - Check
About the only thing I can complain about was the $500 or so brake job on the Quest at 18,000 miles, however they warranty the brakes for 12mo/12k miles. I could've done all four corners for half that, but oh well.
The oil change with Elf synthetic, guaranteed for 6,000 miles, was reasonably priced.
Mossy Nissan in Oceanside is just awesome. There are some crappy dealers out there, including the one 3 miles from my house, but not all of them are. That's why I drive 45 minutes to Mossy whenever I need something done, at least while under warranty. Stamped maint book and all records from a Nissan dealer make for a much easier sale down the road, plus a little bump in resale value.