Almost every other brand of car is sold by dealers who have franchises. Behind the showroom is a repair shop with mechanics who are experts at fixing that type of car. There is also a parts department stocked with parts needed to maintain cars of that brand. The dealers mark-up makes the price higher, but in return the dealer provides services that allow a car to acquire a good reputation for reliability and durability.

Honestly, I don't see how this is any better compared to a Tesla direct sale method, really. Coupled with the number of bad apples called Stealerships...