Volumes have been said on this matter, and the bickering and squabbling about where the "hot" slot machine games are installed in a casino are still passionate – more than 60 years after slot machine games were first added to the gaming floor in casinos.
The standard rule is that the superior slot machine games were placed just inside the main entrance of the casino; so that persons going by would be able to see real jackpot winners … be smitten to come unto the gaming floor … play. Our viewpoint is that this is definitely no longer the case.
Many of the mega casinos nowadays are gigantic complexes and you no longer can see inside from the sidewalk, so there is no longer a reason to situate the ‘loose’ slot machine games close to any of the doors.
Another classic rule is that loose slot games are positioned on the major aisles in the casinos, again so that more potential players could see winning jackpots and be inspired to play. Importantly however, 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 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 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.