The scene being full of posers doesn't really deter me, that's the case for where I live and the Phoenix/Scottsdale scene, and not really a factor.
That's true.
There are plenty of casinos on the Native American reservations that are adjacent to Phoenix. So casinos are not a reason to go to Las Vegas.
Both cities will have water supply issues in forthcoming years.
It's similar where I'm living now with the mountains and desert but the social scene is heavily lacking where I'm at and I'm kind of in a rut. I've honestly had nothing but bad social experiences where I'm at, both with dating women and trying to make male friends, and I have accepted that this won't change if I stay where I'm currently at. The only reason I'm still here is due to financial reasons, I'm currently crushing it, and because I have access to awesome hiking within a short drive of where I live.
You might have done everything you can in your current city and need to go elsewhere, regardless of dating. You are having issues with male friends there too. It seems like work is a non-factor in all of this. Work and employment was a major factor in my last relocation.
Vegas is a bizarre place to live. I haven't lived there myself but I almost moved there and I had a friend that still lives there and a cousin who moved away. They both like it, but with caveats.
lots of options for one-night stands with the out of town hotties.
Yes, the options for one night stands are more plentiful in Las Vegas than they would be in Phoenix if he moved there. Although Phoenix gets plenty of tourism, tourism to Phoenix is much different than Las Vegas tourism. There is some solid nightlife in the Phoenix area but it's not the same as Las Vegas. In Las Vegas, there are women who go to Las Vegas to have 1-2 nights of wild random sex.
I'm sure there are plenty of Las Vegas local men who frequent The Strip area for women who are drunk and looking to have a "what happens in Vegas, stays in Vegas" sex night.