Received a call from Tesla Sales yesterday evening asking if I would be interested in upgrading my 60D to the 75 OTA upgrade - now at a reduced price of $4,500, down from the previous $6,500. We've not had much problem with our commute, about 90 miles round trip, but we also have to charge every day to be on the safe side. Getting ready to take a July trip from Sacramento area to Florida, and not feeling overly comfortable with the trip in the 60D with the spacing of SuperChargers. What do you think? Is it worth the cost to upgrade? Did you upgrade? Thanks for the feedback!