> ...before the savings equal the difference in purchase twice. Why twice? Isn't once sufficient? One reason to require the expectation to be better than brea

> ...before the savings equal the difference in purchase twice. Why twice? Isn't once sufficient? One reason to require the expectation to be better than break even might be due to uncertainty. But EVs seem to have developed into better certainty about maintenance costs, since there are fewer suddenly large expenses ("need a new turbo" was my most recent ICE sudden expense experience, for example).