Thanks for all the input. I think I've read every review that can be found on the internet. I did that before I made the commitment.

Many people seemed to think that the finances were a major part of the decision. They are only to the effect that it doesn't make sense to purchase a hybrid with the added expense and then only get mileage in the low 30's. You're not making a noticeable environmental statement at that point and you've spent extra money up front with the expectation that there would be.

Yes, I know that cold weather or the AC running is going to have an effect on every vehicle. But, a 25% loss in mpg is much more noticeable from 45mpg than it is from 20mpg. In my opinion, when you make a concerted effort to attain a higher mpg, a loss of that is going to be felt worse than if you don't.

I think that I am going to follow through and purchase the hybrid. The GreenHybrid DB (i didn't know it was there, thanks for the info) gives me enough confidence that while I probably won't make 50mpgs, I have a reasonable chance to make it into the 40s. I did notice some drivers that are in my "Why the heck did I buy a hybrid?" range but they are mostly in cold weather locations and I hope that my weather only has short periods in those temperature ranges, not extended periods.