Omission of auto-extending handles is a dealbreaker as far as my wife and I are concerned. Our Prius, two Lexus and an infinity have keyless entry where the car detects the presence of the keyfob in you pocket and unlocks the car, so you only have to pull the handle to open the car. My wife said there is absolutely no way she would take a step backwards (i.e., press door handle, wait for it to extend, and then pull to open the door), and I have to agree with her. Once you become used to the convenience of the keyless system available on the Prius, Lexus, Infinity and other cars, there is no going back. I hope they implement the feature by the time my initial deferal runs up in March. I really would like to buy the model S if they address the omissions.
I am also not able to say where ones limits are when it comes to what makes or beaks the car for any one person. I'll tell you that after drivin our Model S for a few months I wouldn't care if it made me dance before the handle opened or if I had to unlock a vault door in order to get in to drive the car... I would do it gladly every single day. Remember that there was a time without keyless entry or keyless go and we all lived through those dark times.