All well and good as a theory but I don't think Tesla is putting that much thought into it. My delivery window starts in two days and I have configured the most expensive car they can make. I'm doing factory delivery and have a check in hand to give them and I still can't get a firm date of when I can fly up, hand them money and take my car. So, if you really think they are somehow batching the most expensive cars in order to improve their cash flow I think you are mistaken. I think they are just scrambling to get cars delivered in whatever order them come off the line and get approved for customer delivery.
Totally agree!