AAAAAAARRRRRRRGGGGHHHHH!
It cost's more money, because it is ecologically unsound.
It creates pollution.
(Nevermind, I have screamed myself hoarse - envirowhacko's don't care to hear their dopey cult religion challanged, no matter how stupid the scientific premises.)
You're quite correct. This stuff is really about the eco-religion practiced by the envirokooks, and forced on everyone else by government fiat.
How are they ecologically unsound???
Price wise, it takes a while for the payback, but they are better for the environment than other cars.