Well you had to mooch of your friend for one thing. I wouldn't do that, I would go find a charger. Electricity may not be as expensive as gas but it's not free either. Did you go to restaurants with chargers instead of going where you wanted? Did you stay at hotels with chargers instead of staying where you wanted? Did you have to plan your route somewhat beforehand? Were you carrying pets and needed to stop for them on top of charging? If you were at your friends and you decided you wanted to drive up to Canada, how easy would that have been. No matter what, you can not drive as far in an 8-12 hour day as your can with an ICE and these are the binds that people don't want.