there is no "winter" in las vegas. it gets cold and even will snow once in a while but the winter is just fine. even now it is in the 60's. if you are looking for a time to save money, and it is not that busy, then the weeks before christmas are best. the summer will also bring some deals as the heat is insane. i was there 3 or 4 times this summer. unbearable heat. october was nice, as usual. these were rules of thumb before the recession. now you can get a deal anytime. if you are not a loyal player then just call and ask for a "players rate" anyway. everywhere will be happy to give one. as i always say... stop overthinking and get your butt out there!