http://www.thenewsstar.com/story/sports/college/ulm/2015/03/17/cbi-tournament-exactly/24905583/:
"Is it true schools have to pay to host games in the CBI?
Yes and no. In the past, teams in the CBI have paid $35,000 to host first round games, $50,000 in the quarterfinals and $75,000 in the semis.
ULM athletic director Brian Wickstrom said there is a revenue sharing plan in place with the tournament that covers the cost.
There is no guaranteed minimum that ULM owes the CBI, and at the very least all of the university's event management costs are covered, which Wickstrom estimated to be around $2,000.
Whatever money ULM makes over $37,000 — that's the $2,000 in event costs plus the $35,000 for hosting — it gets to keep.
So yes, if ULM was to hit the magic number of $37,000 on this thing, then that goes to the CBI, but the university is not putting down $35,000 from the start."