To be fair, the electric model assumes you have a home charger for your vehicle.
Unless you're driving cross country, the super-charger network isn't a major issue. Unfortunately, most people I know drive cross country at least once a year (beach trips across State lines, vacations, etc. etc). So its definitely a concern.
I think a pure electric vehicle makes for a great commuter car, since you charge at home and never have to go out to a gas station.
But for long trips, the lack of gas stations becomes a flaw, as opposed to an asset.