Volumes have been stated on this subject, and the debates and squabbling about where the "hot" slot machine games are installed in the casino are still passionate – over 60 yrs after slot machine games were 1st added to the gaming floor in gambling houses.
The standard rule is that the superior slot machines were positioned just inside the main entry of the casino; so that everyone going by would see jackpot winners and be smitten to come unto the gambling floor and play. Our belief is that this is definitely no longer true.
Just about all of the mega casinos presently are oversized complexes … now you can’t see inside from the sidewalk, so there’s no longer a reason to position the ‘loose’ slot machines near any doors.
Yet another traditional rule is that loose slot machines are located on the major aisles inside the casinos, again so that more potential players could see winning jackpots and be encouraged to play. Notably though, we find that this also is no longer a universal rule.
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 slot machines 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!
Nowadays, casinos are constantly changing their perspective about where to place the loose slot machines.