> Charging, some placed really gouge you - I mostly charge at home (~0.115k/wh), and some local places are 3-5x that; home charging is the cheapest I've found.

I wouldn't call it gouging. You're excluding the capex on your home charger in your comparison, but public chargers have to include that, maintenance costs as a result of public abuse, maintenance of payment infrastructure, rent for the site, and taxes. If you consider what a public charger might take in a day, it's clear that the non-marginal costs are the majority of the cost.