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I'm fairly certain within a few years she's going to be a subscription that goes with you from car to car. Increasing the price on technology which has already "promised" a lot to date and is "stuck" with the car you buy it for (even though it is just a license to use software), starts to enter the madness territory very quickly. There is not a lot of logic in spending $10K for vapourware when the car's standard autopilot on motorways suits 80% of driving cases.
If you've got $ burning a hole in your pocket, buy Tesla stock.. it'll be a way better investment that transcends the vehicle's useful life.