My son's friend just got home from playing in this league all summer. He had a great time, lots of AB's and playing time on beautiful fields with good competition but............. very expensive compared to some other college summer leagues. He paid for the league registration, his lodging, his work-out fees, his food, gas, etc. It is an expensive league to play in compared to others. As a comparison, my son played in the Northwoods league this summer. No housing cost because players live with host families. Minimal food costs because the team provides 1-2 meals/day (more provided on the road trips), host families feed players, some teams have free food for the players in their snack bars, minimal gas because the players play daily (not much time for other things) and when they travel it's on the team bus. We paid his airline costs to and from and some extra food and entertainment money.
If your son has a choice it's good to find out what your out of pocket expenses will be. His same friend played in Hawaii last summer and that was somewhat expensive also. But, player had a great time and got lots of playing time. Costs really vary and if finances are tight it's worth doing some research. Some college coaches don't really give the player a choice, they just place them.
I'm not posting this to be negative, just to educate parents to become more knowledgeable about their summer choices.