Volumes have been written on this topic, and the conflict and face-offs about where the "hot" slots are located in the casino are still rampant – 60 years after slot machines were 1st placed in the casinos.
The quintessential rule is that the superior slot machine games were installed just inside the main door of the casino; so that potential gamblers going by would see real jackpot winners and be intrigued enough to come unto the gambling floor … play. Our point of view is that this is no longer true.
Most of the big name casinos today are massive complexes and now you can’t see inside from the sidewalk, so there’s no longer a reason to have the ‘loose’ slot games near to any exits.
Another standard rule is that loose slot machines are located on the major aisles in the casinos, again so that more potential gamblers could see winning jackpots and be inspired to play. However, we find that this also isn’t a universal rule any more.
What casinos found over the years is that people walking down the busy aisles were frequently on the way to somewhere else. If they played the slots at all, they would simply put in their loose change because they happened to be walking by. Win or lose, they would very often not stop to keep playing. And the last thing a casino wants is for someone to win a jackpot by playing only a few coins and then not stay to put it all back in!
Today, casinos are constantly changing their perspective about where to place the loose slot machine games.