$5,000 per semester or $10,000 per year is nearly as much as in-state tuition and fees at $12,484 per year.
But then maybe high sorority costs are part of why miscellaneous costs are listed at $3,962 per year. But that would be an average, so it may be that sorority joiners (49.1% of frosh women) would have higher costs, while those not participating would have lower costs.