Also, I personally don't like to take my own car on a long road trip, especially a very expensive car. Road trips put a lot of wear and tear on vehicles. I usually prefer to rent a car and if something goes wrong with the car or I get in an accident, I just call the car rental company and they take care of it.
Don't get me wrong, I love the Model S but I'm also a practical person, I commute 100 miles each day so driving my tesla would be perfect but I don't have to necessarily take it on road trips.