I envy those of you who got this nice incentive (I'm on the standard pay per use tier), but keep in mind that Supercharging is really best for bridging range gaps on long roadtrips. Using it like a "gas pump" on a regular basis is uncovering charge rate throttling (to protect the battery) for some people who use fast chargers a lot. See:
If you fast charge, Tesla will permanently throttle charging.
If you haven't Supercharged before, the novelty will wear off after the first 1-2 times (Although admittedly, Netflix/Hulu in V10 changes the game now, especially with temporary streaming over LTE). Just wait until you arrive at an SC with a long waiting line, inoperative charging stalls, or the fun combo: you wait in line for a stall, only to discover it charges at a crawling pace due to equipment issues