I did a sailing course on a 44 R&C cat last year in May and, since the school was too cheap to run the generator, we never had AC. I myself personally loved it! we always moored so the boat was always direct to the wind, always a nice breeze coming through. Plus the sound of the waves... priceless.

I think we are all too dependent on AC. There is a theory out there that the degradation of our north american society is as a result of air conditioning. Everybody is spending all of their time in doors because of the heat and not paying attention to what is going on outside in their neighbourhood. ah but i digress...