Many people are rich from gambling. People gambling, that is. Running a casino/gambling site seems pretty profitable, and fairly safe in the long term so they make a lot of money off of other people losing their money.
I think it's not that easy to make gambling site? you need to make gambling sites that seem to be different and exciting. you do not want your site ends because no player ?
so you need innovation and great gambling games in it and remember. create a gambling site is not always always profit