Books have been stated on this subject, and the debates and arguments about where the "hot" video slots are placed in a casino are still taking place – over sixty yrs after slot games were 1st placed in casinos.
The standard rule is that the very best slot games were positioned just inside the entry of the casino; so that fun seekers walking by would be able to see jackpot winners and be captivated to come into the casino and play. Our sneaking suspicion is that this is definitely no longer the case.
The majority of the big name casinos nowadays are grand complexes … now you can’t see inside from the sidewalk, so there is no longer a reason to position the ‘loose’ slots near to any entrances or exits.
Yet another standard rule is that loose one armed bandits are located on the major aisles in the casinos, again so that more people could see winning jackpots and be galvanized 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 one armed bandits.