It really depends on their view and experience with gambling. There are many types of people in this world, and one classification is if these people are risk takers or not. To some people, gambling is a form of entertainment. The development of casinos creates new tourist sites. As mentioned earlier, gambling is a form of entertainment.
People can budget how much money they are willing to give up when gambling at a casino.
This must have been studied. I would bet that people routinely exceed their budgets in the hopes that it is temporary. It is similar to the idea of the amount of money you are willing to give to see a movie. The likelihood of winning in a casino is not high, but it is possible. To some individuals, gambling with money brings excitement.