I would like to pose a question but set aside responses from two populations since the answer would be very skewed. 1 - Money is no object. If you can take a delivery of a 90P on Tuesday, and return it on Friday because the 100P came out I don't think question applies to you. 2 - If your business or tax infrastructure allows you to write off most if not all of the lease,this question would not apply to you. My wife was telling me "you should have leased instead of bought the Model X because technology changes all the time". This was in response to the AP2.0 announcement yesterday. I told my wife no because "THE LEASE IS FRIEKEN EXPENSIVE AND YOU HAVE NOTHING TO SHOW FOR THE FRIEKEN EXPENSIVE PAYMENT". Model X 75D - Cash Price = 93,500 Lease for 15,000 Miles (Why wouldn't you drive this thing every chance you could get?) 5500 Upfront Cash 1400 every month * 35 = 49,000 Cost to lease for 3 years = 54,500 vs Cash Price 93,500*(1.08 for tax) - 10,000 for Federal and California Rebate = 90,980. Subtracting the difference, I cannot see the Model X being worth only $36,480 after 3 years. I can drive it for as little as I want and as much as I want for miles. Without seeing a lease contract the residual has got to be higher than $36,480 as well if you wanted to buy it out. Hypothetically, If leased for 2 more years at $1,400 per month that would be $33,600. 54,500 + 33,600 = 88.100 For just two more years of payments, you'd own the car outright, have the equity and no car payment. You would have the option of driving it to the ground or still have some value > 0 after 5 years. I can't see any kind of upgrades worth losing so much equity over. On the other hand. I have a 36 month lease on a 2017 Volt Premier with all options. $299 per month for 35 months, *0* money down. I can deal with 0 equity for the cost of $10,500 over 3 years for the right to exchange into a 2020 Volt if I chose to do that path. Am I making sense.. or missing anything in my calculations?