@Physicslawyer I think you worrying about the battery too early...
You can't compare new Tesla batteries with 10-year-old batteries from Model S or other cars. Even it's still LI-Ion, the technology process is continuously improving, and I am sure batteries of the newer vehicles last longer than 300K, especially if you follow the recommended by Tesla charging practices. Also, by the time when you decide to replace the battery, the price for the pack most likely go even lower than now, because with a growth of EVs, the manufacturing of the batteries will be cheaper and cheaper. Lithium prices are already pretty quickly going down after the spike in 2021-2022. So relax, and better think where to buy tires for MYP, because they will not last
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Lithium price chart:
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