Yes, hybrid is a good thing. I’ve been following the story of the folks who created a kit to allow you to plug in your Prius and then run it 100% on battery to get phenominal gas mileage. Some people ask why Toyota didn’t just make it an option. I think they made the right choice for the broader market – they made it work just like a standard car, removing one of the possible pieces of opposition to adopting the technology. In addition, there are some significant additional costs, like more battery storage, that would make it non-trivial to add.
But I think we’re almost ready for it as a manufacturer option in the next few years – once people really internalize that they can use it just like a normal car, having the plug-in option to really crank that gas bill down will probably be a welcome improvement. Until then, the enthusiast hacker market can get it from EDrive right now.