Well...let me give you a pool room owners side. First, yes there are probably "rooms" that can make their rooms cooler in summer but elect to save a few dollars by keeping the temp set higher. Most pool rooms "rent" their space. Most pool rooms in rented space are in "older buildings". Older buildings don't have the ultra modern insulation and HVAC units that new construction has. When pool rooms have "big events" (tournaments) or are busy, they can get many more people per sq. foot than what the OLD SYSTEMS are set up to handle. If you have a lot more people than normal or "God Forbid" loose one of your AC units...IT GETS WARM. Last year I had a Bank Pool Tournament on a summer weekend that turned out to be the warmest day in Chicago in decades. 150+ people in the room (6000 sq. feet), doors opening every 10 seconds, 108 degrees outside, char grill, deeps fryers making food back by the bar....let's just say it was warm.....Of course you have one "NIT WIT" who asked..."Do you have the heat on"??? Lets just say I think most room owners keep their rooms as comfortable as possible (winter and summer) for the players regardless of electric or gas costs. I have to go to bed now to get up early and get to the pool room to get the AC units fired up....I heard its going to be a HOT one tomorrow.