Note your question implies TER ladies are not quality, which apparently wasn't what you intended. Reprinted in full here, just so you understand why I answered as I did:
"we've all seen the "providers" in the Casinos, near the elevators, etc., and we also know that there MUST be some real quality providers in Vegas....so how do you make contact with REAL quality? ($1,000 plus providers that look like Heather Locklear)"
I find the ladies that are highly TER rated ARE pretty damned gorgeous and real quality providers- so I don't quite get why you aren't finding what you need there, but to each their own, I suppose. Another possibility you might examine is that a lot of models who escort in LA and are reviewed on TER will probably do a Vegas visit for a couple thou as well- and if you are willing to drop a thou for a Heather Locklear ringer, what's another thousand? That's another option you might consider if you are dead set on expensive, high class arm candy and the local Vegas TER-reviewed talent does not fill the bill.
The way to make contact with the ladies you see in the casino? Get a hotel room at Mandalay Bay, the Venetian, Bellagio, Wynn, (the higher-class hotels work best for this) go down to the casino bar, make eye contact with the gorgeous lady sitting alone playing bartop video poker or talking into a cell phone. Repeat as needed until someone says "Are you looking for company?" or something similar. That's really all you need to do- no calls to Vinnie are necessary. I've had this happen to me walking past the casino bar. (The reason why you get a room in the hotel is most girls won't want to leave the hotel with you- too much risk of being dumped in a ditch for them, and quite often they aren't staying at the hotel, although sometimes that's true as well and they'll invite you to their room. Your hotel room being there maximizes your chances.)
I would note that it's a total crapshoot what kind of service you are going to get this way. A lot of gorgeous girls who aren't getting reviews on TER, don't have websites, and so on, have the attitude that their beauty far outwieghs their performance- and aren't going to be into the session for anything other than the ca$$$$$$$$$$h, and will short you for time, be a dead fish, tell you to hurry up, and so on. (This hasn't happened to me in Vegas, since I tend to stick to reviewed ladies, but the girl who made my first TER review went much like this- I responded to an Eros ad with 9's in appearance and mixed service reviews on TER because she was SO DAMNED HOT. I've heard similar stories about working bar girls in Vegas, though.)
But hey, Vegas is all about gambling, isn't it- and maybe you'll find a cutie/weekend warrior who's a 10 in looks AND in the sack. I've seen people say that happened to them as well. Good luck and happy hunting!