A couple more things. If you do decide to book through expedia or something, and you're going for let's say 4-6 days, you can spread the promos between 2 people. For example, lets say encore has 2 days special where you get $100 credit right? Book 1 package for 3 nights under your name, then book 1 package 3 nights under your wife's name. That way you can get $200 credit. Just tip the clerk a $20 when you check in and have them "upgrade" you and also combine your hotel rooms together. They'll set you up with the $200 credit as well. Did it last time I was down there and had no problems.

But I mean with adequate time, I always find booking Flight + Hotel separately cheaper, unless there's a crazy coupon like that Save300 by expedia. If not, just check back regularly at one of those Las Vegas hotel deals sites like this one and keep looking. Just don't wait too long or the flights get expensive. I find the best time to book is about 1.5 - 2.5 months in advance.

If you want, send me a pm before you book and I'll double check for you to make sure you have the best rates.

Cheers!