Not to mention, it’s a standard now, and the old Supercharger protocol is being phased out in favor of another standardized one (I forget which). Further development done on their chargers from here on out is going to be done by a consortium of companies rather than in-house anyway.
Because cars are a useful tool made up of physical parts that can wear out, while games are an entertainment product made of ever-changing software. You need a car. You don’t need video games.