Just got home from visiting family a couple of hours away in the highlands here. Battery is now at 40%, it'll take almost 2 days of charging at home to get it back to 100%. Hopefully I don't have another significant open highway drive to make in the next day or so.

Also our electricity rates fluctuate based on the underlying wholesale rate. It's going to be clear and sunny tomorrow at midday. Sure would be nice to be able to set my car to charge at midday when the price is single digits cents per kw, or maybe even negative. Instead I'll just have to drip it in with the higher rates at midnight-6am and know tomorrows cheap rates will average out to a much lower cost.

TLDR: definitely useful even for people who charge at home.

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.

The byd fast recharging requires a very high voltage, it's not something that will be available for home use