There is still an issue with the cost of driving on electric if you can't plug in at home of course. I see data showing commercial chargers cost 30-60 cents per kWHr for power, and it takes 30 or so kWhrs to go 100 miles. Our basic hybrid goes 100 miles in town at about 36 mpg, so 2.8 gallons, which around here is under $3/gallon, so $8.33.
It's as cheap or cheaper to just buy the gas. Maybe my math is wrong.