While true now, once the Model 3 arrives this may no longer be an 'only in California' problem. ...
That is certainly a possiblitly it is also a possibility that it won't be. Or even that it isn't a problem in CA at that time either.
The challenge is building enough superchargers to support the region they are in.
Even in CA, the overcrowding is not state wide.
Can they build enough? I don't know.
But years ago, many around here were convinced Tesla would never survive to release the Model S, that the X would never see the light of day, that SC would bankrupt the company and many other doom and gloom.
Rather than rooting against Tesla, I'm enjoying their product, and cautiously optimistic that they can do what they say.
GRA, I know you aren't one of those, but they know who they are