recruiting101 says - but I have never had a campus visit rejected
still, have not often been on someone with 6 seriously active schools
"Once you've built up a certain amount of recruiting credit for a recruit, home visits and campus visits become available. The cost of these is based on the distance between the recruit and the school. These actions have a much higher value than the attention points. A recruit may only visit a particular school's campus one time, and may only go on 5 total campus visits."