I just put a $2,500 down payment on a 2017 90D, it's listed as a demo, even though it has 23 miles on the odometer. It's spec'd out very close to how I'd want it, so took the bait. Sticker is ~$111,850 Discounted $22K for being a demo and a 90D $1k referral discount plus $7,500 tax credit if I buy I need help deciding wether I should buy or lease. The sales guy is trying to push me to lease, but I think I might be better off buying. (I've leased several cars, including my current one which ends at the end of the month). I'm not concerned with monthly payments, I'm more concerned with the overall cost to drive/own. The lease comes out to: $822 a month for 36/12K with $5k down (plus TTL) and security deposit Total cost of lease payments with down payment is $34,592 (not sure what the MF is) or I can buy it for the effective price of $81,350 (inc tax credit) +TTL interest is 0.99% my sales tax rate is 7%, so I'd end up paying about $3,800 in additional taxes on a purchase versus lease. comparing apples to apples, and adding the additional tax difference into the cost to purchase, making it $85,150 Assuming I get rid of the car in 3yrs either way. The car would have to be worth less than $50,558 ($85,150-$34,592) after 3years for the lease to come out ahead of the buy scenario. Do my assumptions make sense? What would you estimate a 2017 Model S 90D to be worth in 3yrs, assuming 36K miles driven? My rough guess would be at least in the $60-65K range, based on what I've seen in the market. I'd appreciate any insight you might have. Thanks in advance!