I live fairly close to the main Tesla factory in Fremont, where my Model S was built, but > 90% of my neighbors drive enormous gas guzzling pickups and SUVs that must cost a fortune to refill and maintain. I've always wondered about what the price of gasoline needs to be for a true change to happen. Right now, gasoline can cost anywhere from $5-$7 in California. Let's say it costs $20, or even $50 a gallon. Would folks still drive large gas guzzlers? I suspect the diehards would still do so, perhaps take out a second mortgage so they can pay for gasoline. Ultimately, the economics of drilling for oil will the driving force behind change. The US has become the world's largest producer of oil, thanks to shale oil. Till that changes, EVs are a bit of an exotic item because the price of gasoline will be low enough for folks to continue doing what they have always done, and the parents and grandparents did. Humans change at glacially slow pace, unless they have no choice.