In 2012 (most recent season on NCAA site)...
6 teams averaged 5,000+ per game (LSU, Arkansas, S. Carolina, Ole Miss, Texas, Mississippi State)
14 averaged 3,000-5,000
23 averaged 1,500-3,000
I doubt any of them are even close to breaking even. The ones with the highest attendances also spend a crapton of money.
Let's say each ticket is sold for $7 (very conservative since that's just general admission in most college baseball parks). If a team averaged 5000 tickets at $7 per with 32 home games, that's $1,120,000 in ticket revenue alone. Pollard said the cost of fielding a team in the Big 12 is $2 million per year. I think it's feasible that the rest could come from premium tickets, luxury booths, ad revenue, concessions, and so on. This seems like it fits my statement that baseball teams are "close to" being self sustaining. The teams that have smaller average attendances would have more of a gap to fill for revenue for baseball, but a baseball team would still be better off financially than most other Olympic sports just because baseball will actually sell tickets, unlike track, golf, tennis, etc.