Be interested in your final opinion James if you find in the end if its "worth it" to get such a vehicle. This thing is pretty much the pinnacle of fuel efficiency right now so I shall read on in anticipation!
Until next summer when the Prius Plug-In arrives.
The Prius has been the most bullet proof Toyota currently made. Hence the reliability factor for the Plug In is there since it's more or less is a normal Prius plus some extra batteries and charging circuits. The "hybrid" system remains the same as the current Prius.
The lithium-ion battery pack can be charged in 180 minutes at 120 volts or in 90 minutes at 240 volts
To stop the usual arguements, I acknowledge, at least until we hear from his Majesty, James The Ist, Earl of the Ottawa Woodlands, that the Volt has double the range, but after that the gas mileage SUCKS.