Personal opinion...BIG mistake!

1-cruises this time of year (this week, along w/Thanksgiving week) are a-SUPER expensive, b-SUPER crowded.

(OT-I ONCE took a cruise T-day week. The ship was so full (4 people/cabin, etc) that they had let ~100+ crew members OFF to meet regulations! As a result-dinner was a MESS. We waited ~+45 min for "anytime" dine. Buffet was packed...it was a mess. We ended up bringing food back to the ship from the daytrips! )

Here is what I would do:
25Krt p/p on delta anywhere in the US. Find a nice resort...have a blast. 100K Delta and use the 270K Marriott.

Where are you located? Where would you LIKE to go?

Give us some hints...will help you out.

(We like to sightsee "off" season-ie, London/Europe in fall...etc)