Are your more prone to, doing kinky fun because it's LV?
What happens in LAs Vegas stays in Las Vegas!... I've only ever traveled to LV with girlfriends or my former SO. Note to self: Do not go to Las Vegas with a vanilla woman again......
There are even many private /exclusive events and you can even bring your "S.O". One annual event, Noir Privè loves kinky couples, though originally was only for the hobbyist who identify as a sub/ slave. As long as the gent is in the submissive role ... she can be Domina / switch /sub. I think this year there are two couples already pre~booked. The gents who come solo are the wildest haha
The event you mention is sadly not in the cards for me but it certainly does look amazing.
I'm pretty far "out there" in many ways in my kinkiness--but one way in which I'm just not as "enlightened" as some is in the area of MFM, MMF, or anything involving activities with TS/TG'ers.
Long ago and far away, I used to have an SO who was similarly kinky as I was, and we occasionally were invited to what I guess you could call S&M swing parties--but these parties were for hetero couples only, so I had basically no problem participating--and Wow, were those parties fun.
Now that I'm a man of a certain age (and no kinky SO any longer), the only party invites I'm likely to get are to things like Noir Prive--and I have gotten them, courtesy of one or two of my favorite kinky providers. I've always declined though, for the reasons stated above.
I don't expect Rachel to have the answer to this, but are there parties along the lines of what I described, where the emphasis is on hetero couples? Obviously, it would also have to be ok that my escort for the evening would be a provider--I know I can get a couple of my Vegas friends to go along with that part--it would just be the party crowd that would have to be comfortable with it.
Hubba! If Rachel was my Queen, I'd certainly consider it! 
Actually, Las Vegas and Nevada can be surprisingly conservative in their politics. Those of us in the BDSM community are saddened that the law in Nevada still views certain BDSM practices as abuse/domestic violence, even if consent is given. Therefore, there is a scene in Las Vegas, but it's pretty limited and it involves people taking a considerable risk.
There are fetish-themed nightclub parties and things like that, but the S&M there stands for "Stand & Model".
You'd probably have much better luck with a swinger party there than a kink party. Try L.A. or San Francisco instead