While I usually love Marriott hotels and would love to try the JW Marriott Las Vegas,
I would recommend the following for Vegas:
- Weekdays: Stay at a 4*+ Casino, which offer great rates Sunday through Thursday.. you can get net rates of $90 or less at the Bally's, Hard Rock Hotel, Luxor, or even Stratosphere Tower for under $50.
- Weekends: Casinos double and triple their prices, so it's indeed wise to stay at one of the non-casino chain hotels at a weekend rates.. Amerisuite opposite Hard Rock often has a $59 rate, while Marriotts might be slightly more... Personally I might spend a weekend night at Primm Valley (half price than Vegas) or go for a 2-3* casino for still way under $60 per night...
Hope to go back to Vegas in August, and look forward to feedback on new casinos!