People have commented on the pumps v. station issue, but what about time?

The most accurate measure of the infrastructure might not be how many plugs are around, but how many cars can be charged per day. Or perhaps how many vehicle-kilometers are available to electric cars. With pay-at-the-pump any gas pump can fill a car in say two minutes. An electric charger, even the fast ones, will take 10-100 times as long to "fill" a tank.

So take the number of charging plugs and dived that by a factor of 10x->100x. Then come back when the number of available "fills" per day becomes comparable.

Then adjust for the reduced range and come back when the total number of available vehicle-kilometers breaks even. I'm afraid that day is still a long way off atm.