I have been driving electric for 10 years now...

You talk about rates, but if you care about that, this is a no brainer. You can go to that super charger and charge in 10 minutes. You'll just pay triple your home rate though? So if you care about cost, you would never charge anywhere else.

Also, you say you need 2 days of charging to recoup 40 to 50% of battery (assuming you don't typically charge to 100 which you shouldn't). This implies you charge from a normal outlet. That's fine and I've been doing that for years, but if charge time was an issue you could have a level 2 charger at home and cut that time in 4 or something with not that big of an expense.

super charger rate is typically 6x for me. What's the cost multiple difference when my rate is negative (i.e., I'm being paid to help load shed from the grid)?

Anyway this wasn't meant to be a debate about rates. Just that "nobody that charges at home would want this" was an overly reductive claim.