The goal is comfort, right?
Go read the links, and especially about the 2 stage coolers, you might learn something... This page is quite informative...
http://www.oasysairconditioner.com/environment.html
They only slightly raise the humidity, and the air motion more than makes up for the increase in perceived temperature. And humidity is good and dry air is bad for you from physiologically perspective. Even in single stage coolers, the humidity rise is seldom uncomfortable, and again, the air motion often makes up for the difference in perceived temperature.
Do you know anything about commercial HVAC? A large percentage of it is not what you would call Air Conditioning at your home because it is too damn expensive!!! There are chillers, cooling towers, a whole lot of water, heat exchangers, etc... In many ways a cross between the two technologies, and in the appropriate climates, many companies do use large 2 stage evaporative cooling systems. I'll bet you money IGT's Computer rooms are not cooled by freon condensers, compressors and such like your house!!!!