If You invest in stocks, You know it's every bit like gambling in Las Vegas but legal from all over the world. You might want to invest in some of the places that take Your money on all those Las Vegas trips, at least You will not feel as bad if You are a part owner.
MGM Resorts (MGM) MGM Grand, Mandalay Bay, Luxor, Excalibur, New York New York, Monte Carlo, Mirage, Bellagio, City Centre Entertainment complex, Aria, Vdara, Skylofts at MGM and Circus Circus all in Vegas. See all over America at MGM Resorts
Caesars Entertainment (CZR) Caesars, Harrahs, Planet Hollywood, Ballys, Flamingo, O'Sheas, The Quad, The Linq complex, Rio and Paris all over Vegas. See list of all over America at Caesars Entertainment
Red Rock Resorts (RRR) Red Rock, Palms, Green Valley Ranch, Boulder Station, Palace Station, Sunset Station, Santa Fe Station, Texas Station, Fiesta Henderson, Fiesta Rancho, Barleys, The Green's gaming. More at Station Casinos
For a more complete list of Gaming stocks including those that do not operate in Las Vegas, visit Casino Gaming Stock
As You can see there are just a handful of Companies that control most of Las Vegas. It is rare to see a Hotel/Casino that is not in a mega group. The exception is The Cosmopolitan, The Stratosphere, Treasure Island, Casino Royale and the Westgate Las Vegas.