I suspect the Nissan calc was $400 a month for a LEAF, discounted $100 a month for CHAdeMOAmazing value.
In my world a LEAF is worth $300 a month and CHAdeMO is worth $(150) for a total reasonable value of ~ $150 a month
Perhaps we agree -- An amazingly BAD value
By the way, we own a 2013 LEAF and it is turning out to be good value. But that is because it was cheap to buy used, is cheap to insure and run, and it is not asked to drive more than 40 miles between charges. I think it will have cost us ~ $100 a month (all costs included) to own and run when all is said and done. It is not worth much more than that.
On the topic of Nissan, that company is the pits, in many ways worse than e.g. GM. That is saying something. The upcoming Arriya looks nice in photos and by spec but knowing it is Nissan puts it off my radar.