I'm thinking more along the lines of EVs in general, not just Teslas with large battery packs. There will be people that have both a local EV (small pack) in their garage, along with a larger EV for family trips and times they need more miles available. I liked seeing EVSEs at Costco. It helped to raise awareness with the general public that EVs are here now.
When we get to the Model 3, there will be a lot of education required for people on where to charge, how to charge. The more the public sees EVs in their day-to-day activities, the easier it will be when Model 3 hits. Just my opinion. But I think we need to be concerned about every EVSE, every location ... 'rising tide floats all boats' kind of thing. We need more EVs on the road. Even ones with less range that need to charge while at Costco.
Agreed, not everyone owns a Tesla,even if they had the finances for one. Broader adoption for EV,the Model 3 with so many reservations in June 2016! Function,the longer road trip [600 miles] into areas without superchargers,a PHEV may be more useful.Especially where parking's a problem at home,you may be only able to choose one "environmentally" [friendlier] vehicle.
Example, driving from NY state into West Virginia ,ending in Charlotte, North Carolina, maybe into Charleston,South Carolina.There's a Wheeling W.V. supercharger as of 2014.Still leaves over 400 miles to the N.C. destination without a supercharger. Using this example, even the 90D is hampered with a "prolonged" road trip due to charging requirements.Whereas most PHEV
would only need one,or two charges in hybrid mode,with about two stops for gas.
If both businesses ,and governments don't add more free, street level chargers , the general public will see owning an EV as an inconvenience. In large cities with EV chargers primarily inside city owned,or private garages ,requiring
upwards of $20 to park isn't going to be an incentive to those who already don't own an EV of any kind to want one.
Accessible infrastructure is key,and California's commitment to the West coast electric highway is an awesome way to help new EV,even PHEV owners with range anxiety,and flexibility in
real world use. Street level parking lots,on street charging is going to be useful to even the larger battery EV,no one "plans" to be out of charge,but it
can happen.