Given tesla service center record, I rather not take the risk. Now if it was significant discount, then maybe. Essentially I would factor in about $30K additional cost for a model s. I.e. what an equivalent car of that miles and year without the issue tesla claimed they fixed. Then discount that cost by $30K. The point of doing this is you assuming the risk of potentially spending another $30K down the road. If you dont, you won, if you do, not much is loss because you got a $30K discount.