I guess it depends on the climate where you are. We (08v, Iluvmyversa and myself... maybe some others I don't know) are in a relatively small area between two very large lakes (10th and 14th largest in the world). Plus too many small lakes to number. Its humid here. Very humid. The purpose of having the A/C come on is to dry the air inside the cabin. I like the fact that the Versa turns it on automatically, as in my previous cars I had to turn it on manually all the time. My truck does the same thing as well.