Tesla just killed one of the biggest benefits for customers
businessinsider.com
businessinsider.com
But that in itself was a reduction from the original position, as of 2014:
How often can I Supercharge? Is it bad for my battery?
Supercharging does not alter the new vehicle warranty. Customers are free to use the network as much as they like.
Which was diluted in late 2015, with letters being sent to 'excessive' users, and now for 2017 with limits to inclusive usage.
And relevant section:
> For Teslas ordered after January 1, 2017, 400 kWh of free Supercharging credits (roughly 1,000 miles) will be included annually so that all owners can continue to enjoy free Supercharging during travel. Beyond that, there will be a small fee to Supercharge which will be charged incrementally and cost less than the price of filling up a comparable gas car. All cars will continue to come standard with the onboard hardware required for Supercharging.
Maybe I'm biased though because I ordered mine before the cutoff date :D