What is wrong with it, Raffy, in my opinion, is that it runs counter to what Mr Musk put forth in his "Top Secret Plan" detailing what Tesla Motor's mission is.
If I can summarize, the objective is to bring to the world in as efficient a manner possible the full electrification of the automotive industry. The Roadster and the Model S have been high-profile, high-margin introductions, both representing well-thought-out steps that have served the dual purposes of bringing to the world's attention excellent quality electric cars AND funding a newborn company with the capital needed to proceed to the next levels (or providing the firm with access to such funding, which is at least as important).
So, while I agree that a superduperpoppeduphoppedup Model S: AWD, 0-60 in aught-point-nothing-flat and so on could command a true premium price and there are any number of members of this forum who not only have the wherewithal to put one or two of those babies in their garages, and the sales of same most certainly could continue to command very handsome margins indeed....
...I also argue that such a tact would likely to represent a stumbling block, NOT a step forward, in meeting TMInc's stated goal. The sooner Tesla can bring out a Volks Wagen, the sooner the "Top Secret Plan" will come to fruition. There already is, most especially in the USofA, a considerable and ugly attitude that Roadsters and Model Ss are elitist toys and, in their iconoclastic engine-less way, are contemptuous in a fashion that no Ferrari, Bentley, Lamborghini or Bugatti can evoke.
Now, this is not to say that erasing such prejudices should take precedence over all other concerns, but I will posit that minimizing it to the point of negligibility is one of several valid tasks. For me, then, a competent Model X - a decent crossover that competes with other SUV-type alternatives - is the way to go. I have argued elsewhere that a truly courageous step would be to step into the lions' den and offer a full-size pickup truck as soon as possible. If you would like to read in that that I myself find a pickup more appealing than a supercar...I plead guilty, but I also very strongly believe I am correct.
(On edit: written while Shadows was responding to Raffy)
