You may be right but I'd guess that I did about 2500 kWh of Supercharging last year so I'd say that it depends a lot on what one wants to use the car for. If it's just a local commuter car with infrequent road trips, that usage wouldn't need the Superchargers much. But some of us enjoy making road trips to visit family, friends, as well as National Parks and the like; the Tesla Supercharger network makes that easy and fun. Being retired I have only a one-day-a-week commute to a volunteer job; the ability to do local driving as well as thousand mile road trips was the whole point of trading my LEAF and ICEV for a Model S. For those who spend 250 days a year commuting I can see that long road trips and Supercharging are likely to be less of a concern. The new 400 kWh/year free plan will work well for many.