If a player is actively recruited by an SEC or ACC school it is nearly impossible for them to say no. Think about it, what kind of player that has the talent to get the attention of those schools is going bail out on the competition. It is a numbers game and someone will end up on the short end, but for those players given a chance are almost always going to take it.
It is the basic human nature for players to go where the best game is. They all think they will be 1 of the 8 best players wherever they go. Or top 3 pitchers. Why wouldn't they because they always have been.