Did you drive the effin' car yet? If you did, you wouldn't need any more evidence.
And that is exactly the litmus test. I had to switch from windows/linux laptops to a macbook to understand why apple was worth much more in the near future, just the iphone alone didnt even convince me back then. But I still made significant profit from it and paid for all apple devices with stock gains and diversified into other stocks, too.
Now tesla is at a similar juncture, we have owned a Model X since May 2016, now in January I got my Model 3. It is absolutely amazing to drive, and with every software update it gets better. They added chill mode in the last one, which may help as a marriage insurance when the wife is in the passenger seat, but I don't normally use it. But it feels like even the normal sporty driving dynamics have improved, or maybe I am just getting more and more used to the kinetics of the car.
Having transitioned to electric driving, and never going to gas stations, oil change and smog check appointments again, just plugging in at night and full in the morning, the immense controlled power that unleashed leaves every gas car behind at the light turning green, it significantly shifts your perspective.
It is like I realized I left a very ugly past behind. And then I walk across a parking lot, and notice the oil stains all over the place and am appalled and wonder how we let it go that far. If somebody leaked oil into a street deliberately, we would be upset already because one drop of oil spoils that much ground water, but for legacy gas cars, we ignore it, because, thats what they do, its just the way it is. But now it no longer has to be that way.
This is the part you are missing. I would never go back to a gas car, not a Porsche and not a Ferrari and not a Mustang and not a VW CC or Audi R8. I would never give this up again, just like I never would trade my smartphone for a landline again, may it be cheaper, need less charging, less reboots, but its just not going to happen.