Full charge cost can be misleading - a better common-denominator is fuel cost per mile.
Looking up electricity rates for Media, PA, I am shocked as to how LOW they are!
Let's pick a nominal number from that list: $0.075/kWh
Now, driving your i-MiEV without excessive exuberance, a good round number of wall-to-wheels consumption is 4.2 miles/kWh
Thus, $0.075/kWh / 4.2 miles/kWh = 1.786¢/mile
Compared to an ICE vehicle, with your gasoline prices presently at around $3/gallon, let's pick on a 25mpg car -
Thus, for ICE, $3 / 25 = 12¢/mile
Depending on how you look at it, the i-MiEV's fuel cost is around six times less expensive than ICE!
Here in California the prices of both electricity and gasoline are radically different, but the i-MiEV continues to be just about the lowest-cost vehicle you can drive.
BTW, I moved this thread into the operating cost subforum. You might peruse this subforum for more answers to your question.
Say you drive 1000 miles/month, your electricity ("fuel") costs will thus be around $17.86/month
. Compare that to the afore-mentioned ICE vehicle, which would be $120/month.