meh. Even driving my truck all winter (which is hungry as hell) I average 35mpg between my vehicles. If I had the $20k or whatever, I'd rather get a new truck or add to the two wheeled stable. The bike is a lot more fun in the summer, and the Prius/Hybrid ugliness wouldn't do jack in the snow. Basically, I'm reducing emissions in the summer when everybody starts bitching and reducing the demand for fuel