It was bugging me enough that I needed to post it. I'm not sure what to do with my revolation. But I guess it really struck me that the prius, which is ~50mpg, uses one less gallon per 100 miles than my old saturn, at ~30 mpg and my new car, at about ~25mpg, uses one more per 100 miles. And I know I did this math when thinking about my purchase, but it just hadn't struck home that my "oh, it's just 5mpg" was a whole gallon! Driving to pittsburgh, at $4/gallon, that's $24. On the other hand, that 25mpg I gave up compared to the prius only gets me $48... so...
Anyway, I wanted to share.