Volumes have been written on this subject, and the debates and squabbling about where the "hot" slot machine games are positioned in the casino are still raging – over sixty years after the slots were 1st placed in the casinos.
The standard rule is that the best one armed bandits were located just inside the main foyer of the casino; so that fun seekers walking by would see actual jackpot winners … be infatuated enough to come into the casino … play. Our disposition is that this is definitely no longer the case.
The majority of the big name casinos nowadays are humongous complexes and it’s no longer possible to see inside from the sidewalk, so there is no longer a reason to position the ‘loose’ slot machine games near to any of the doors.
Yet another traditional rule is that loose slots are installed on the major aisles inside the casinos, again so that more potential players could see winning jackpots and be roused to play. Notably however, 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 slot 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!
These days, casinos are constantly changing their philosophy about where to place the loose slot games.