Well, it is all about greed that drives something like this "terrible illusion." Why? Because when a person thinks about money and winning at the casino, all the things that appear in their mind are about winning. And they will do anything to make it happen. Unfortunately, casinos don't allow it. Instead, casinos make use of it to make these greedy gamblers lose more.
As long as we've been driven by greed, there's no way to find satisfaction and happiness in gambling. Instead, this will easily put us into the trap of addiction.
The worst thing that can happen to an inexperienced gambler is when he or she thinks that they can beat the house or that they can win a heavy amount from the house when the house didn't allow it. Winning is by luck and who ever don't know that yet is being deceived by something that they might regret about later on. One don't need to have illusion in gambling except they want to lose everything they have. It's better to have self control and know the truth about gambling.