I would agree about the tipping point, except it was an automotive employee (and a lawyer no less) who said it
I just checked out a book from 1981 that is filled with EVs, I think "tipping point" is a matter of perspective.
Just to be annoying on the cost some more:
For example:
lets just say that 1 Gallon = 114,264 Btu/gallon
and the conversion factor is 33.487472793 kwh/gallon
and the consumer cost comparison factor is 2.8
So that if you used 10 gallons, thats 335 kWh, with an adjustment *2.8 means that an equivelent EV would be allotted 937 kWh in the rankings, or enough to fully recharge a tesla about 15 times (240V, 70A, 3.5hrs). The tesla has a range of 220 miles so it would go 3300 miles on that 10 gallon equivalent, which would be like
330mpg dollar for dollar.