40 years old (just), got the TCH for most of the same reasons as the rest of you, except, I don't care that much about mileage. I just think it's a very cool system and enjoy the way it works, and I like for people to think I'm doing my bit for the environment (since they don't know about our SUV!)

And in Colorado the state gives you back enough money to offset the additional cost, so why not?