Not worth my time. Stopped buying Teslas in 2018 so it doesn't affect either of my current two (both have ultrasonic sensors). As it stands now, I have no plans to buy more, for one I cannot live with stalkless steering, but also would want parking sensors and learned over the years that if it's not available on delivery day, good chance it will never be available for that car - you might get an excuse from Tesla, like "it was only a forward looking aspiration goal" not "a promise of any specific functionality".