Side note, I often wonder if the FULL SELF DRIVE (or any upgrade) was account bound, NOT fixed to the car - if more people would opt in. It might even be a good business model option, as like APPLE, it's a Tesla investment for the long haul, not just a temporary car upgrade if you intend to follow the tech and upgrade your car every 3 or 4 years. It almost ties people in to keeping a Tesla and not jumping to a competitor (if you've invested 10k for account upgrades that filter down to a selected car if you have multiple)...
Having to buy it for every car is a huge kicker.
Having to buy it for every car is a huge kicker.