I don't see any advantage of the gambling. All of my friends joined and played gambling, but all of them are loss. At the first when play gambling, the profit is high but then is always lose and lose. So that I think gambling is a waste of time and not an advantage, the disadvantage of this is more than the advantage. A lot of families is broken up due to this game.
Gambling generally people ends up in looses itself else how will casinos owner distribute money to others if all start winning? Well in online you have advantage to gamble anywhere and at any point of time which is like relaxing at home and doing it or even if you are vacation and want to do still can make use of it rather than going physically to the casinos.