Seller is Tesla and they won't sell these outside of auction. There is a $490 auction fee (plus a little to your dealer who does the work). I actually included that in the price I quoted. Dallas usually has 1 every week. Be patient - there will be more.
PM me if you want to know more about this process. I'm not a dealer but a good family friend of mine is - I buy all my cars at auction (including my Tesla).