76 miles?
Until they can get the batteries to go farther than they do now, it doesn't really matter how cheap they get, no one is going to buy a car that only goes 76 miles before having to park it for 3 hours. You can't even go from Boston, MA to NYC in less than 9 hours with one of these things. They'll forever be a niche vehicle used only for the very short commutes and they'll never be able to replace a conventional or hybrid vehicle because they're just useless for anything other than a short commute.