A lot of the UNLV Hotties hang out at "THE BEACH", which is also a popualr place for out of town chicks to visit and cut loose, so if you want to meet a NON-professional civilian chick you can score with without forking over a minimum of 400-500 bucks, try that place...
Many of the OLDER, MILF type strippers and escorts that still look pretty fuckign hott can often be found at the FLAMINGO Hilton's Pool, especially during the daytime weekend when their customary business clientele is slow...so if you like MILFs, check the Flamingo out...but Christian is right about Rehab on Sundays. All the YOUNG HOTTIES go there for hangover busting bloody mary's and the cool pool scene. Try the in-water blackjack to attract some gold digging honey's to flirt with...buy in for about 300-400 AT LEAST and pretty soon a couple chicks will be rubbing your dick under the water as you decide to double down against an ACE to appear brave and cavalier in their eyes...good times.
Also, there is a Burgeoning RUSSIAN MAfia Presence in Vegas, and as such HOTT Russian Chicks abound...again the Flamingo Hilton is a good place to meet a "Natasha" who will be your girlfriend for the night for as little as 500 bucks (a STEAL cuz most of these Russian chicks are TOTALLY hott, and do just about ANYTHING.) For some reason, the Russkies also like the Aladdin...the pool on the roof is pretty nice. If you take the girl shopping in Aladdins Mall and buy her a nice trinket or dress, she'll blow you right at the register if you ask her...they dont have malls in Russia except in Moscow and St Petersburg.
If you are on a budget, cheap and/or dont want to blow a LOT on a room but still want SOME semblance of superficial quality, check out the Straosphere at the VERY end of the Strip. Dont let the surrounding block's appearance fool you, the STRAT actually is a clean, decent hotel...lets you plop your money on more important things like Booze, Hookers and Strippers...
I personally have a sentimental attachment to Downtown Las Vegas...my first time, right out of College in 1992 I stayed downtown and had the fuckign time of my life...in 1992 Vegas was still VEGAS. I still remember it just before the city changed (for the worse) and became Disneyland for Degenerates. Downtown still has some historical sights of OLD Vegas worth seeing, and the Golden Nugget is still a decent, semi-classy hotel. Only problem is you will have a hard time getting a decent escort to visit you downtown unless you pay a premium...if the girls get busted Downtown it is a MAJOR hassle for them as opposed to being busted on the strip...