I'd add to that, at least for my farm, having a convenient source of electricity sitting in the field for when things break (to power tools, etc.) would be fantastic.
But you are spot on. The dollars and cents just don't make sense.
The true object of my lust is one of these electric tractors, which can also serve as a mobile power bank, but I might have to resort to converting something instead: https://solectrac.com/
