Unexpected maintenance costs can be factored into the consumer cost using expected value, similar to how one accounts for recurring costs such as fuel efficiency in the decision to purchase a vehicle.
Your reasoning is similar to a company computing the cost of web hosting using only the initial cost of one server, without accounting for the cost of downtime or multiple backup servers. Maximum effort does not imply a process with 99% reliability is 100% reliable, and that the cost of failure can be written off.
This is not making a claim in regards to Tesla or the accuracy of the $40k figure, merely that cost matters.
Your reasoning is similar to a company computing the cost of web hosting using only the initial cost of one server, without accounting for the cost of downtime or multiple backup servers. Maximum effort does not imply a process with 99% reliability is 100% reliable, and that the cost of failure can be written off.
This is not making a claim in regards to Tesla or the accuracy of the $40k figure, merely that cost matters.