I strongly believe that charging stations need to become entertainment complexes, particularly if you're going to have them on highways. You have a captive audience for however long it takes to "fill up" an electric car, you need to offer services to fill the time/make profit off of the customers while they're there. Get people loyal to your brand, your specific offerings of entertainment while you wait for your car to charge. Until we see those sort of things pop up to deal with the fill up time relative shortcoming of electric cars on long trips, I don't think electric cars will have truly "made it".