I just got home from the Manhattan "Meet Model X" event (cocktail party, not the test drives). Seemed like there were more Tesla employees than customers there. Not sure if it was the rain that kept people away or they just didn't confirm that many people for it (or a combination of both). I had tried to confirm an hour after I got the reservation last month but the site told me it was already full. Then I got a call from an inside sales rep a couple of weeks later who said he could get me into the event. It was nice to see the X but kind of bittersweet too, given my situation. Got a pic of the one they had in the showroom which was close to my config (Blue, Black leather, black Alcantara headliner, etc.). Spending a bit more time in the X did get me thinking that the 7-seater is not the best choice if you plan to have adults (or big kids) in the rear row, particularly with the black headliner. It just feels too tight back there. The 6-seater feels much more open.
Also, I noticed that the carpet in the six-seater was completely seamless (sorry, no pic). It didn't look like the patchwork carpet that the earliest Sigs were getting (that had stitching where the seventh seat pedestal would have been).