There have been multiple reports that all 3 tournaments are having problems getting teams to accept bids, even the new Las Vegas 16 tournament.
The reported cost of hosting a home game in the CBI is now around $40-50K, and around $40K for the CIT. But then those teams that host can recover some costs or maybe even make a profit through ticket sales, concessions, etc. The buy-in for teams that travel is much less, but then there are some travel costs and other expenses that may not be covered, and no chance to recoup their money.
The Las Vegas 16 tournament is held at a single site (the Mandalay Bay Hotel Arena). The cost to buy in is around $50K for each team (Includes travel costs and hotel, but not meals or other expenses) . But of course, no team gets a home court advantage or a home game to garner revenues.
Apparently schools are not as thrilled with these lower level tournaments as they were when they were new. And now many schools are more concerned about the costs. We may see some pretty mediocre teams filling the brackets in these tournaments this year, and it might be hard for them to continue much longer.