From the point of view of a company that's mission is to further sustainability, a super duper fast charger network raises some interesting contradictions. In the short term, it would be great because it would get rid of one more barier to adopting electric transportation. On the other hand, I know if I could get charged up for next to nothing in less than 15 minutes almost anywhere, I would drive a lot faster and less efficiently thus using a lot more electricity and hence resources. The only way to get people to then drive more efficiently would be to boost the cost for the charging at this rate -- nothing any of us spoiled "super charge for free for life" people would cherish see happening.