Books have been stated on this matter, and the debates and face-offs about where the "hot" video slots are positioned in a casino are still there – more than sixty yrs after slots were 1st placed in gambling dens.
The traditional rule is that the very best slots were placed just inside the main door of the casino; so that everyone passing by would be able to see actual jackpot winners … be tempted to come unto the gambling floor and play. Our position is that this is definitely no longer so.
Just about all of the major casinos nowadays are enormous complexes and it is not possible to see inside from the sidewalk, so there’s no longer a reason to place the ‘loose’ slot games close to any doorways.
Another standard rule is that loose one armed bandits are located on the major aisles inside the casinos, again so that more potential gamblers could see winning jackpots and be influenced 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 slots 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!
Today, casinos are constantly changing their perspective about where to place the loose slot machines.