It's going to be an interesting inflection point when gas stations start closing. It's easy to setup a charging station at home, but if the nearest gas station is 30 miles away that's a different story.
It will be really easy to enable long distance travel for EV's that can DC fast charge. Charging for your home area is covered by wherever you park it.
Seems like a gas station death spiral is inevitable, once there is a solid travel network in place and ample 200 mile range EV's available.
Successful commercial charging stations will be judged by the quality of their coffee and lounges.
At least until we get to the point the plug-ins are everywhere, such as in every apartment building and public parking lot... but even then there will be a need for public stations.
The requirements for the kind of grid hookup you need to handle that power are wildly different. Alternatively, you can have a lower powered grid connection, and local batteries to buffer energy and lower peak power, but that is even more expensive, and only works if your charging station has low average usage.
Once built, the supercharging station might need less maintenance, but it is WAY more expensive to set one up up front. This won't stop them from proliferating, IMO, but it's still a big barrier to entry, and a nice commercial "moat" for Tesla to offer their customers.
Also the requirements of aluminum factories in electricity are mind blowing.
What I mean is: We already have those electrical installations running, way bigger installations than 10 supercharging stations grouped together, for industry and transport.
I see EVs as an enormous opportunity for those technologies to become cheaper as they become mass produced. But the technology is well proven and works.
It will also accelerate the development of things like superconductors or extreme voltage continuous current for electric transportation.
A 20 story apartment complex with say 400 apartments needs ~1MW. Power companies are used to rolling out these kinds of connections and large ones do it on a weekly if not daily basis.
We just need enough EVs on the road so that it becomes economical.
Though if you're staying with relatives for a week, you'll be playing musical cars to make sure everyone's charged. A problem you don't really have with gas cars. It's not all upside.
Worst case use an extension cord and most cars will charge overnight.