exactly, and as such there is business risk, we know that there are gamblers who manage to win a lot and take a lot of money away from the casino and this is taken into account by them.
As with any self-respecting activity, there is also the risk that there are some good players
Of course there are people who make profits while gambling on the casino, while there are others who also lose largely while gambling but the percentage of people who are making loses are much more than those who are making profits from gambling, sometimes the casino also takes good records of these people and monitors their accounts closely to see if there would be any ill activities from their ends. Yes, lot of people complains about loses we should also remember there also quite majority of people who are making profits from the casino as well.