Books have been stated on this subject, and the conflict and ruckus about where the "hot" slots are positioned in a casino are still taking place – more than 60 yrs after slot games were first placed in casinos.

The standard rule is that the more favourable slot machines were put just inside the main doorway of the casino; so that fun seekers going by would see actual jackpot winners and be stimulated to come inside … play. Our interpretation is that this is not so anymore.

The great majority of the mega casinos nowadays are herculean complexes and it’s no longer possible to see inside from the sidewalk, so there is no longer a reason to have the ‘loose’ one armed bandits close-by any doors.

An additional traditional rule is that loose one armed bandits are located on the major aisles in the casinos, again so that more persons could see winning jackpots and be roused to play. Nonetheless, 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 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 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 slot machines.