Ending today, BookIt offers 3-night stays for 2 at the All-Inclusive Grand Sunset Princess Resort in Cancun, Mexico, bundled with a room upgrade with prices starting at $538.26, as provided by Dunhill Travel. (It's the top offer on the page. Click on "Check Rates" and "Try Our Lowest Price Calendar" to find these rates.) That's $236 under our December mention and the lowest current rate we could find for 3-night stays at this property by $78. Blackout dates and additional fees may apply. Book this travel deal today for stays through December 22.
Of note, BookIt offers stays in other hotels in or around Cancun with prices starting at $84 per person / per night. Scroll down to see them all.
With these companies, it might be easier than you think to negotiate your monthly bill down.