I had thought the cost for the private tour and drop off at our river cruise ship was a bit expensive. But in retrospect, it was well worth it.  Not only were we able to squeeze in an extra great day of tours visiting and learning about the history of a number of really neat places west of Nice, it was just great spending the day with Sylvie.  A very enjoyable day with an easy to talk to, knowledgeable, and efficient tour guide.