You will always see people winning a lot in casino games. This is because the casino will advertise those winners to prove that the casino is paying out. However, you will never know how much money the players have lost up to now just in order to have a big win.
Yes, that's true because those promotion of the winners of the casino's are attracting a lot of gamblers in able to prove that they do really pay. But the problem is they are earning more from the money of their gamblers lost. Well we can't blame them also for they are business, we just need to be a responsible gambler.