I read this on another board and it makes way too much sense.
"I think she and her family are savvy. They know that she is creating publicity -- perhaps good, perhaps bad -- by not announcing until April. My speculation is that they are accepting this publicity because it avoids even worse publicity had she announced her decision in October.
In other words, I speculate she's not going to South Carolina. She didn't want to announce that until April because she didn't want to go through the entire basketball season in a South Carolina high school, in the same area as the University of SC, with all her friends, neighbors, fans, and USC fans questioning her decision or calling her a "traitor". She and her family decided they'd prefer to keep all those local people guessing rather than bitching at her for six months."
If anyone can come up with a better reason for her waiting, I'd like to hear it.
I'm sure out SEC fans might have some.