Volumes have been written on this issue, and the disquiet and feuds about where the "hot" one armed bandits are positioned in a casino are still taking place – over 60 years after slots were first installed in gambling dens.
The quintessential rule is that the more favourable slot machine games were put just inside the entrance of the casino; so that individuals going by would be able to see real jackpot winners and be challenged to come unto the gambling floor … play. Our interpretation is that this is not so anymore.
Most of the mega casinos today are magnificent complexes and now you can’t see inside from the sidewalk, so there’s no longer a reason to situate the ‘loose’ slots close-by any entrances.
Another classic rule is that loose slot machine games are put on the major aisles inside the casinos, again so that more folks could see winning jackpots and be inspired to play. Importantly 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 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.