Vegas is in a state of flux. They are starting to feel the impact of boycotts and international visitors staying away thanks to Trump.
All of the advice above on ladies still applies, unless you are arranging to see a well known and reviewed independent lady, places like ECCIE.net and other review boards, you are gambling with a possible sting and/or jail time. The whole card/magazine/rolling billboards call a girl to your room is a massive scam that most know to avoid. Any cab driver or UBER will charge 300-500 to take you to Pahrump, and then you are looking at 1000 or more to get off, sometimes much more to get laid. If you really want to check out the brothel scene, google sex in Nevada board and check out the reviews/information.
Casino girls can be an option, they will show up in the lobby bars and some of the smaller bars, but you have to be very careful as there's just as many rip-offs as there are hidden gems. The stories about guys getting drugged and cleaned out when they thought they struck the jackpot with a hot girl in the bar are not a joke.
If you want to check out the strip clubs, use their free limo service and never take a cab, unless you like setting money on fire.
You want to have the same experience, hit the River Rock Casino in Richmond and get hustled by one of the massage parlors near by. You will be broke, angry and horny, but you will only spend a few hundred Canadian instead of thousands of USD.