Cult membership dues.
I understand 5 years ago when Tesla was doing things nobody else was doing but electric cars are mainstream now. If I had the money I'd be buying a Volvo Polestar.
You need to drink the Kool-aid pretty hard in order to buy hypercars like the LaFerrari but there's not really anything on the scale of Tesla.
The pickup truck people are very brand loyal and don't forget the buy American crowd.
You just see a lot of Tesla stuff because there is a cross section of tech people who like Tesla because it is marketed like a phone instead of a car.