The batteries are supposed to last 100,000 miles, and I believe are warrantied for as long.
The liberal analogy to the car is to be expected. It comes from the same ignorance that labels Miatas as chick cars - that is until a Miata hands them their asses on a nice tight race course.
So first your Porsche is beat by a Miata on the track.
Then your F250 Ford p/u sucks down three times as much gas than the less expensive, farther traveling Prius.
Yep, it's a sure fire liberally-minded automotive conspiracy.