24-25 mpg vs. 16-17 mpg @ 80 mph in a 4x4 makes all the difference in the world. When you fill a 35 gallon tank @ $120, 1-2 times a week, you start to get sick of blowing your money on gas.
$.20 per mile @ 16mpg @ 80 mph
$.14 per mile @ 24mpg @ 80 mpg
FYI, I had a eb f-150 4x4 and got 16-18 (average) mpg at 80+ mph.
I think the new EB engine is great for good midrange power/tq with good economy.