For me, there are actually two people that will profit big and most of the time with gambling - they are first: 1. the lucky one and 2. the professional gamblers. The rest are just average and most of the time loses or just breaking even. Well, I know personally of a person that is very lucky when in terms to gambling and he just capitalize on it.
There are certainly lucky gamblers out there but what about the unlucky ones that really want to win big in gambling? and I do not believe in professional gamblers that are winning because of there skill and are very good at doing gambling because gambling is just a mare coincidence when you win because gambling stand alone in peoples luck and not in particular skills of a person.