Volumes have been stated on this item, and the debates and squabbling about where the "hot" one armed bandits are located in the casino are still bubbling – more than sixty years after slot machines were 1st placed in gambling houses.
The traditional rule is that the superior slot machines were put just inside the main entryway of the casino; so that casino fanatics walking by would be able to see actual jackpot winners and be titillated to come unto the gambling floor … play. Our inclination is that this is definitely no longer so.
Just about all of the large casinos nowadays are behemothic complexes and now you can’t see inside from the sidewalk, so there is no longer a reason to place the ‘loose’ slot machines in close proximity to any doorways.
Another traditional rule is that loose slot machine games are placed on the major aisles in the casinos, again so that more fun seekers could see winning jackpots and be motivated to play. Notably 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 slot machine 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!
In recent times, casinos are constantly changing their perspective about where to place the loose slots.