Let's see how your Volts hold up over time, the Prius has a proven track record, sorry you think your 38mpg Volt is better than a 52mpg Prius family (there are 4 different models now), the fact is the Prius is a magnifigant success and has gone mainstream, they are everywhere. The end result is the million plus Priu has saved more gasoline than all of the Volts have, and made a significant, meaningful reduction in gasoline consumption, you just don't care or realize it, your not really environmentalists, just technology geeks. The evolution of the Prius continuous, as larger capacity packs become more economical, lighter, and denser, a Prius EV becomes likely, but it won't happen until its cost effective and viable, Toyota will let others do the work, and jump in when they feel the technology is mature and cost effective, they are a conservative company.