Volumes have been said on this matter, and the conflict and interchanges about where the "hot" video slots are positioned in the casino are still taking place – 60 years after slot machines were first installed in casinos.
The quintessential rule is that the best slot games were installed just inside the main entrance of the casino; so that everyone passing by would be able to see real jackpot winners and be stimulated to come unto the gaming floor and play. Our belief is that this is no longer the case.
The majority of the major casinos presently are immense complexes … you can no longer see inside from the sidewalk, so there is no longer a reason to situate the ‘loose’ slot games close-by any exits.
An additional classic rule is that loose slot machines are installed on the major aisles in the casinos, again so that more potential players 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 one armed bandits 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!
Nowadays, casinos are constantly changing their philosophy about where to place the loose slots.