Nice write-up, Angela!
I think you meant 220 volts on the charger, not 220 watts. A regular 110 outlet will run your 1200 watt microwave oven all day long, it wouldn't have any trouble delivering 220 watts.
One thing you're not seeing is the hot-rod potential. Guys (and girls who are so inclined) will always find ways to compete in things with wheels and try to make them faster. There's already a big electric drag race scene. When electric cars take over our roads, the kids who grew up with them will know all about what motors are bolt-in swaps for their cars, how to add cells to their battery packs for more voltage, how to reprogram their controllers to deliver power for peak acceleration, etc. It will really be no different than that transition from carbs and distributors with points to fuel injection and electronic ignition. There were a few years in the late 70's and early 80's where people were afraid of the computer-controlled systems under the hood of a car... now we all accept it as normal and understand how to work with them. The newness of electric cars will wear off in time, as well... and as they start popping up on the used market at prices that young kids can afford... a new generation of "motor heads" will be born. REAL "motor" heads this time, not "internal combustion engine" heads.