This town (LV) is simply getting out of control, certainly if you have the time, hit some clubs,etc instead of the conventional route, I absolutley agree stay away from agencies in LV; Tao (Venetian) is pretty hot, seems to be more & more girls hitting that town than you can handle!
Sapphires: well, I admit, I love it, (although 'scores' is getting all the publicity now) but you have to know it's strictly 'entertainment' , not bad to go for a couple + hours realizing you'll drop some bucks there.
Yes, I've spent some bucks there, and did hit it off with a nice Russian girl in the vip, yes: nude,daty,etc, but that is the exception, not the rule; takes a dark corner, no big crowds, and some tipping! Saw her next trip privately, and I have met others there I've seen 'outside' the club, but I will tell you it's not cheap.
All in all, you can't beat vegas for entertainment!