In addition to the items of concern that you have already listed I would add a couple. The fact that they are not even more expensive is, at least in part, doe to tax payer subsides. Free-markets, unassociated with the federal government and the use of confiscated funds, is the only way this new technology should more forward. If there is a market for this type of Vehicle, then the market will fuel the growth of the industry. Capitalism is the proper engine not corporatism.
In addition to your comments about the cost of these vehicles and the need for recharging often, is the facts about the electric production. As many in Washington are doing all they can to bankrupt coal and we have not built new nuclear plants in years, it is going to put a strain on the electric grid.