Volumes have been said on this subject, and the debates and ruckus about where the "hot" slot games are located in a casino are still rampant – 60 years after slot games were 1st installed in gambling houses.
The classic rule is that the better slot games were located just inside the main foyer of the casino; so that everyone walking by would be able to see jackpot winners and be stirred to come unto the gaming floor and play. Our conviction is that this is definitely no longer so.
Just about all of the mega casinos nowadays are monstrous complexes and you no longer can see inside from the sidewalk, so there’s no longer a reason to position the ‘loose’ one armed bandits in close proximity to any entrances.
An additional traditional rule is that loose slot games are located on the major aisles inside the casinos, again so that more fun seekers could see winning jackpots and be energized to play. Importantly though, we find that this also is not 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 slot games 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 very 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 machines.