Archie, I must chide you for not changing the SUBJECT!!!
Also, I am aware of the numbers you are quoting.
Just wondering - How can Trump and others post such huge quarterly losses with all this business?
I am sure you remember the fore runner to the slot cards that was invented and patiented by Elisnor. Little tokens that dropped out of the slots at regular intervals. At the Atlantis, they found that the cost of getting day trippers to the casino was more than their average spend. Not good business!!! BTW, I could use one of the Atlantis tokens, if you have a trader.
The Four Queens and the Rio also used this method to track slot players. It worked, but the slot technology moved it out the door.