FWIW they stopped using it quite a while ago on the 3 (assuming you mean lifetime)
They're using it on the S/X again, but profit margins are much higher (and sales volume much lower) on those
I agree about SC.Free SC also hurts in the form of lines, waits and power costs (esp on high volume 3)
FSD/AP though helps for data gathering etc. It's pure profit for Tesla when it comes to us holdouts. I wish they would do free trials again soon.