Personally I think that any company putting a car on the market, today, without well engineered cupholders somewhere inside, is just ameturish. It makes no difference whether YOU don't feel the need for a cupholder; a LOT of buyers for a car like this, in this price range, will feel that not offering one is inexcusable. And exceptional audio quality is to be expected as well. Just because YOU don't feel the need to rattle the mirrors with some great bass doesn't mean there aren't some buyers who want - no, expect - that in a car of this caliber. At this price level you are up against some pretty impressive competition. Competition that Tesla has specifically called out. Whether the Model S dusts the competition on a stopwatch 0-60, or costs less to operate over the course of five years, might matter little when you are trying to find a place to put your soda and your music sounds like crap (personally, I like my pop on occasion when I drive, and I like to turn up some Great White to brain rattling volume levels once in a while. Now you have an approximation of my age).
I have a sh*tty old 1997 Chevy S10 pickup that I drive for chores and during the winter. IT has a lighted vanity mirror. Not providing one in the Model S is inexcusable.
I'm sure that Tesla will address these issues, but I'm finding it hard to understand how a company staffed with so many people who have experience in this area would have missed this stuff. Some of it is more basic than cruise control. Personally I have no need or want for a nav system, but a lot of people want that, to the point now where it is expected these days on cars like this. Same goes with cupholders and lighted vanity mirrors.
What's more disturbing, after all the fanfare so far, is people saying, "Well the car is 98% done now, just a few more things to fix." What were those cars they sold back in June then? Post-pre-production test models? It comes off feeling a little (my apologies) Fisker-like.
I temper these comments with the acknowledgement that everything that I have read on this car to this point has had mostly praise to offer.