I can answer, because I asked the very same question last week. The National High School Cheerleading Competition is being held at the Wide World of Sports complex during that time (I think Feb. 8-10). We have a fam. suite booked at ASMu, and when my brother tried to book a room there to join us, they were all full. We were temporarily pretty freaked out, but I think it will be OK. Don't give up, though. My brother has been checking every day or two, and he just got a room at ASMo yesterday. I'd bet some of those rooms are booked by cheerleaders who won't end up qualifying for the finals, so they'll eventually be released.
That week is also Mardi Gras break for us here in Louisiana. I can guarantee most of thos rooms are from people over this way who want to take advantage of value seaon rates.