But this article is really light on details:
1) Is put option available without the loan?
2) Is it available for longer than 36-month period?
If I decide to buy Tesla, it's unlikely I'm going to be replacing it in 3 years, more like 6-8 years. And I think that there is a good change that in 6 years resale value will be 0 - with more advanced battery tech available and with cheaper models around, and with old battery Model S may turn out to have no value in 6 years. So this kinda stops me from considering it.