Nice. ^
Earlier in this thread I mentioned my own experience at Bellagio, 4-night stay, ~ $145 rate incl. breakfast via Amex FHR... $100 yielded a 2-bedroom Penthouse Suite with 5 bathrooms (albeit not a fountain view).
For a 4-night stay it was just $25/night. Not free (net cost) as above, but well worth it. I wouldn't drop $100 probably on a single night, even for such a wonderful room, but it's a no brainer over a multi-day stay to offer up more than the usual $20...