I know it's a distraction and orthogonal to your point, but your statement of a "key fob for your Tesla for $300" is fallacious and incorrect. Tesla uses Phone Key with with the Tesla app as your primary method of unlocking the car, with a $20 NFC card as fallback, and the limit of paired phones is above any practical real-world use. If you want a keyfob as a status symbol, it's $175. (Mine is a desk ornament, it doesn't get used.)
Swap in a more traditional automaker, and your point remains correct.
Swap in a more traditional automaker, and your point remains correct.