Also that's not the cost though. You're looking at vehicle packs not stationary storage packs at that cost. We've seen stationary storage packs get down to $50/kWh last year - with an average pack price of $70: https://about.bnef.com/insights/clean-transport/new-record-l...

And prices continue to decay. Those are the most expensive prices you'll ever see going forwards.

And there's other benefits. Batteries distribute well, letting us lower grid related costs by making more constant use of the chokepoints in the grid for instance.