I'm just waiting for nuclear pulse propulsion.
Anyway, electric cars at this point are what I would call an aggressive short sell on gas prices. By todays numbers, they won't pay for themselves for the higher price in savings, but theoretically if gas price shoots up enough, at some point you would start saving money. Of course, if gas does start costing 15 dollars a gallon, then by the same token you can imagine how quickly all the various oil-producing nations, including us, would be scrabbling to get it out of the ground, and then oversupply is going to temper that cost pretty quickly. Anyway, I see no problem getting an electric car but I'd get it because you want it, or think its cool, rather than from any belief that it is a sure thing for financial benefit, because at this point it seems unlikely to save you much, if any money. But its time may come!
I'm fairly fortunate in that my family only drives maybe 1000-2000 miles a year. Gas just isn't as significant an expense as it is for other folks.