I ran evaporative cooling with my mine from 2017-2019 when I lived in the mountains. Worked extremely well due to the dry climate and I never had issues due to the humidity in the room but I made sure I had good ventilation. I moved since then to a much hotter and humid climate. I'm using AC to cool my mine, on the absolute hottest days its probably costing me around $4/day to run since its summer. We would need to revisit late 2018 for my profits to go negative.

FYI the best cooling setup is just fans moving cool air from the outside in and hot air out if your climate and property can support it.