I have been following TMC forums for past couple of months and have learned a lot by reading various threads. TMC has helped immensely in making my decision. I ordered 70D Solid black, Grey Next Gen, Pano roof, Autopilot, Premium interior, subzero weather package. I got VIN assigned yesterday. I am super excited and next 4 weeks are going to be painful. As I start looking at my financing options I am torn between Buy vs Lease (sorry ) options. I have read all the threads related to the subject but I think I am more confused about this decision than I was before I started reading Here is my situation. I have a long 140 mile round trip commute in NJ. I drive about 28K miles per year. So over 3 years I add about 84K miles on the car. I have always been replacing cars every 3 years primarily due to the trouble that starts around that mileage with ICE cars. I don't think 84K miles would mean the same thing for Model S but I am kinda used to upgrading my car every 3 years now. My primary pull towards Model S was due to Autopilot considering my long commute. I know the current software does not fully utilize capabilities of the autopilot hardware and many more features would likely be released over time but reading on TMC it feels like an upgrade to Autopilot hardware is imminent over next few months/years. I love Model S as it is now but I think I will be very tempted to upgrade in 3 years if better Autopilot hardware comes out. So I ran some numbers to help me with my decision on buy vs lease. I made certain assumptions around resale value of 70D in 3 years with 84K miles on it. There are not comparable sales but I used high mileage P85 sales and adjusted for cost gap between P85 and 70D. Also note that I assumed I will pay for excess mileage at $0.25/mile. Buy LeaseCar price84,30084,300Title & Reg1,2001,200Due at sign10,0007,000Tax Refund-7,5000Loan Amount75,500 Monthly Payment1,2261,037Miles driven/yr28,00028,000Excess mileage cost0271Total Monthly payment1,2261,308Total miles over 3 yrs84,000 Resale value at 3 yrs30,000 Loan balance at 3 yrs34,000 Walk away cost/payout4,000 Total cost over 3 yrs50,64054,082Based on these numbers, it appears lease is marginally more expensive than buy option over 3 years but gives me flexibility to upgrade to new Model S in 3 years. Please let me know if I am missing something obvious in my numbers. Thanks in advance for your advice.