I'd be dissapointed too if a hybrid I bought didn't get a least 50mpg. The Honda CRX-HF was able to do 50MPG with just an ordinary gasoline motor, and that was well over 20 years ago. Today, if I can't get at least 50MPG, I see no great reward for paying that extra premium that gets the newer, and yet to be proven reliable, technology.
***Rant*** Come on, it's been over 20 years already since the arrival of the CRX. Why don't we have more 50MPG+ cars by now, that aren't little sh*tboxes?

I'm not opposed to the hybrid technology, I believe it's a step in the right direction. I just don't want to be the guinea pig. I want at least 5 years of data before I'd consider buying one. I'd like to know if they are capable of aging gracefully; because, I keep my cars until the bitter end. I'd like to know what happens if my drivesystem battery dies outside of warranty. Do I have to shell out the $3000+ to replace it? Geese, for that much money--I could have a brand new motor put in a conventional gasoline car. And even a hybrid still has a gasoline motor that I have to worry about, in addition to the electric motor and the expensive battery.

Not trying to hi-jack this thread with a rant, I'm just voicing why I haven't bought one yet. I do take great interest in reading other peoples experiences with the new technology. And I hope to see more enlightening posts from more actual owners of hybrids.