I find that it depends on what I'm doing.  If I'm hiking/camping or doing things that are generally considered "dirty" I don't require A/C at those times because I'm not really going to be clean at any point in that equation.  At home I don't like to sweat and if it's too hot I can't sleep because I feel nasty if I stick to the sheets.  If I'm camping and stick to my bedroll or sleeping bag, who cares?  That's what it's for.