Then it might be your reason why you always come back to the gambling games. I am sure that there is any more reason for us to continue gambling because gambling is something that will tempt us to always come. But I agree with your saying that we need to gamble which we can afford to lose because we are not sad if we are losing the money.
You look at the output of the money you put in and the cost of your time you put in and calculate the benefits. If less, you do not go into the gambling and if high, you go into the gambling and enjoy it in the same time. There are people who are in gambling just for profit.