The increasing number of casinos will only increase competition in the gambling industry; it doesn't automatically lead to a proportional increase in the number of gamblers. It will most likely only affect market share among casino operators, with the stronger dominating and the weaker gradually being eliminated. Therefore, the increasing number of casinos directly benefits gamblers, as there will be more promotions and a wider variety of rewards available. And casinos will likely maintain the quality of their service to avoid losing their players.