I can't speak to Vegas, not having been there in 25 years, but I can tell you that, in the greatest stroke of luck ever to befall me, I once persuaded a young woman to fly up to spend a weekend with me in New York. Those three days were the best three days of my life, not just for he sex, which was great, but because she treated me more like a boyfriend than any other woman I had ever been with.
In retrospect, and having read some others' comments over the years, I probably wouldn't take that chance again, unless it was with someone I knew pretty well or wanted to get to know a lot better -- but even then, recent experience with women I thought I knew pretty well indicates that Cobain's comment above contains much wisdom.