That's not a charge to attend career fairs; our partner companies pay us for white glove recruiting services, advanced access to grads, and for us to find and deliver unique sourcing criteria from our student body.
It costs us a lot of money to offer those services, and I think that program _almost_ covers its own costs, but has been a big winner.
The purpose is to create a relationship that helps learners get hired, and it's been succesful.
“Career fairs” as such haven’t been very successful for us, so we don’t run them, but it’s not because we charge for them. There are other mechanisms to meet grads (and our most successful connections are 1:1, not many:many) but until recently when we had some major hiring partners come in for our backend program most of our grads were hired by companies that don’t pay anything.