In other gambling devices, skill only slows down the loss of the gambler's money. It is no loss. It merely brings in millions more dollars as others see the possibility of winning, too. The fast majority of gamblers are a sick and disappointed people. When they do occasionally win, they usually lose it all again.
Free drinks are a part of the sales pitch which the gambling house offers.
Girls serve drinks among the crowds continuously. Since alcohol works fast on the part of the brain that controls good judgment, the more a person drinks the more freely he gambles until he has lost his last cent and lost his power to borrow another dollar. True, all of life is uncertain and has its risks. We start down the road but do not know if we will reach our destination. Yet, this risk is not artificially contrived.