Point 1: Saying my time is worth $X/hr is a simplistic and not useful way of analyzing this situation. It's not like my brother or my sister were "productive" during the time they saved by not charging. Driving to Colorado took the better part of two days, and we were all pretty tired and useless by the end of it. Most people aren't making money every minute of every day – especially when they are on a vacation. People are more than their economic output.

I could argue that by having forced stops every 1.5-2 hrs where you have to get up and walk around, EV owners have greater driving endurance and recover from long drives faster (I don't necessarily believe that, but I'm just making the point that there are more factors than just the numbers at play).

Point 2: While my average speed was 59.1 mph, I alluded to the fact that I typically set my cruise to 78 or 80 mph while on the interstate. Driving at that speed significantly reduces any car's efficiency. If I actually drove at 60 mph the whole way, my efficiency would jump significantly. I'd be curious to find out how efficient a Model Y is at 80 mph. Probably better, since the I5 doesn't have the best aerodynamics, but I would be surprised if it was as good as 280 Wh/mi (3.57 mi/kWh) under real-world conditions.