I guess it all depends on your expectations and what u hope son gets out of it.
$75000 can be used towards college IMO wether son plays baseball there or he just goes academically. Can't imagine what a player can get out of a short experience that can be worth that. What if u pay and go and kids arm starts hurting while there. Is there a refund?
Is this just a camp or do coaches who run it scout talent and help players w college connections? For 75k u can hire a personal trainer and hitting coach to work w your son for several yrs and see how he dev and be there to make corrections as needed.