cuz its 'easy & quick money' where you will nowhere else make such quick legitimately
There is not such a thing as easy and quick money, you need to work hard for it, even those few gamblers that are able to get some profits out of the casino games make great effort to reach such results.
The gamblers are not for the money at there to gamble they are just for their entertainment and only these people are able to enjoy the games at all aspects and they remain good financially they even get the chances to win good because they remain normal mentally while gambling.
That's why there are two types of gamblers, first those gamblers who are not financially well and looking for the chance to make their destiny good with gambling.
And second, those people who are financially well and just looking for some fun entertainment that able to relieve their stress.
For both of their reasons, that makes gambling very addicting for looking for their satisfaction.