I can only speak for mine but USC was offering little when other schools were offering mush more. I think in some cases but not all, they try to get the in-state player with academic money which may not pay for everything and use their athletic money to make big offers to the out of state player. Others schools do it so it is not just USC. Its not a bad idea if it works.Some of the in state players get better offers from other schools (SC or out of state schools) so that may be a reason the bigger SC schools has a lower number of SC kids.