1. Mirage. And the luckiest casino in Las Vegas, according to experiences of TripAdvisor reviewers, is the Mirage. 6.03% of the 2,867 reviews indicated having luck there.

Gambling can stimulate the brain's reward system much like drugs or alcohol can, leading to addiction. If you have a problem with compulsive gambling, you may continually chase bets that lead to losses, use up savings and create debt.

Outside bets in roulette carry the lowest risk. They cover more numbers yet the payouts are lower (1/1 for Red, Black, Odd, Even, 1 18, 19 36). These outside bets carry the best prospects for long-term wins.