I absolutely HATED Vegas when I was there for a conference a few years ago. The only upside to it is that Vegas is cleaner than New Orleans and has better looking hookers.
Also, the solicitors pissed me off. They try to get you to take these tours to sell you some sort of timeshare. To boot, some people actually paid money for those tours to be tortured by a timeshare speech. It helps if you speak Russian or Polish though so when they come up to you, speak a foreign language and act confused. I laughed at everyone from my company who fell for their tactics.
Don't even get me started on the bums who hand out escort service cards on the main drag. Just bіtchslap the first bum who walks up to you and you will be much happier! Then again, I was thoroughly entertained by a bum who was nearly run over by a car crossing the street to ask me for change. I didn't give him any change, but watching him dodge three cars was funny as could be.