They do the same thing with their cars! Incredibly expensive proprietary fasteners that you might only need 12 of sold in unit sizes like 500 or 1000. Sometimes they change multiple times per model year. You cannot buy them secondhand or share with other shops as part of the agreement to buy them in the first place. Know a couple auto body dudes that lost their ass thinking they would be like every other automaker. They have all since stopped doing work on Teslas.