I had the same thought. No matter how hard we try we will never win against the casino because their system will never let us win and their basic odds are against the player winning. So for gamblers who have thoughts that they can make money from gambling, they will tend to continue betting even after they suffer a big loss because what is in their heads, is the opportunity to recover their loss but, what will actually happen is a way for them to get worse.
Low odds that we can beat the casino system that has been programmed on the backend, so we like gambling against the gambler rather than beating the system like slot gambling and other games, p4p gambling games are fairer in the decision to determine the winner and we also like sports betting because the winning result is not determined by gambling system. However, some gamblers claim to have won the jackpot from slot gambling but they have actually lost far more than the amount they won in the gambling session.