I'd say, you gotta shop around. And I would add, don't buy from Tesla.
On my first Tesla, the OEM tires lasted 20K. I drive on hilly, curvy mountain roads, local, not much fwy, but I thought it was poor tire life. I looked for a top tire rating, needed good traction when it rains, etc., etc. I bought Michelins. My tire life doubled.
Second Tesla, car came with Michelins. Got 40K, have 30K on second set and expect another 10K. The only difference is the tires. Yes, Michelins cost over a thousand bucks for four, and getting them mounted and balanced is another hundred a tire, so you're right about the price. These are BIG tires, and the X tires are bigger than mine. Make sure you get the max tire life rating.
But -- it's the price you pay for a big hot-rod SUV. I used to buy tires for $30 for my Corolla.