Actually, yes, I have a Tesla and use it as my only car. I am intimately familiar with the repair costs. An ICE car is about three times more expensive to maintain and repair.

Tesla's service centers are on average overwhelmed with work, the vast majority of which is warranty work (therefore unpaid) simply because there is almost no required routine maintenance, and most Teslas on the road are newer than the four years that it takes for the warranty to expire. They are incentivized to build good cars in order to reduce the service burden on their service centers.