Las Vegas all started because of Bugsy Siegel, and Hoover Dam. Vegas had to have water and power so they built Hoover Dam during the Great Depression, and then Bugsy Siegel came along and opened the Flamingo in 1946. Now Vegas is one of the top destinations for new immigrants who are coming to the USA, and jobs are easy to get. And Vegas has a fun lifestyle.
The next step for Vegas is to have a high speed train connecting Vegas with Anaheim, if you go one way you go to Vegas, and if you go the other way you go to Disneyland. The tourists will love the high speed trains, and so will the locals. ( Amtrak needs to build high speed trains all over America. )
Salute,
Tony V.