What is the difference between a "Factory Owned" Maserati dealership vs. a Maserati dealership? (I know it's owned directly by Maserati N.A. & not a private owner.) Are they less willing or able to discount their inventory, new & pre-owned? Are there any benefits from purchasing from one? And finally, how many are there - I know Maserati of San Francisco is one... who else? Thanks!