Evaporative Cooling compared to Vapor compression-refrideration system

Basically, I’m realizing that Evaporating coolers cost one-half to in stall than Gas absorption, Gas compression, Thermo-Electric-etc.-etc. The evaporating Swamp cooler has less maintence ;and use one-quarter of the energy. I live in New-Mexico.Not that much Humidity here.So I can understand why other Air- Conditioning systems are utilized in other places in the country.