I road trip regularly with my Tesla Model S. You would be surprised at where there are charging solutions. Any RV park can charge you up over night. If you use superchargers, it's hardly slower than a gas car. A 600 mile day that would take roughly 9 hours of driving and 1.5 hours of stopping (getting gas, eating, bathroom breaks) in a gas car takes about 9 hours of driving and 2 hours of stopping (charging, eating, bathroom breaks).

To me that's totally worth the savings on fuel and the fact that the car does 90% of the driving for me. If you left at the same time, you'd beat me by 30 minutes, but I wouldn't feel like I'd been driving all day, and I would save $50+ on gas.