All right, let me rephrase then. What do *you* value the car at, when you want to get rid of it? Since it is obsolete, you clearly don't think it is worth much. Subtract that value from what you were willing to pay for it, add 30% markup, divide by 18, and that is what you will need to pay per month. Buying, leasing or renting, it will all amount to the same cost. Tesla has no incentive to make a special deal for you just because you want the latest technology, in fact just the opposite. Typically, companies see people like you as a gravy train to be milked for every penny.
Thank you kindly