You will enjoy the extra battery capacity of your Prius.
In really cold weather and when you are stuck along side the road in heavy snow in your not going anywhere hybrid, your 4 way flasher will last longer and your cell phone will have more power to keep trying to reach beyond that "out of area message" you keep getting....
Just kidding, I see them on the streets up here. Quite often under the front end of some 4X4 truck, but on the street none the less.
Sorry. I think Hybrids are the way to go for in town commuting, not the open road. I don't think electric is the answer either. Just moves the pollution elsewhere (NIMBY). Natural gas is not it either, at least in all places. I have seen large trucks here converted to NG and in seasonably cold weather (0 - 10 F), the gas does not behave the same and the engine stalls or looses power. Saw this happen to large semi truck far from any help after dipping into a cold valley and then trying to climb a long grade out. He made it but that company did not convert any more trucks.
I think our current problem is the fuel. Others here have noted that 90's era vehicles got better MPG. Remember the 1973 fuel crisis's? VW came out with a 50 MPG diesel Rabbit and could not make enough of them. Now its 32 years later and we digressed. Moore's law should have been forced onto the engine manufactures to really produce and develop better engines. We should be well over 100 mpg or more by now using clean burning fuel. And that's for 4X4 trucks!
Maybe hydrogen or fuel cells are the future, but improving what we already know will go along way for now.