For those wondering about GOCC, I am a member of their board of directors. Directors only have been invited. This may be the case with some other clubs.
This is one of the very few events wise. Especially when it comes to park sponsored events. And I do want to say for the record, if you had been a GOCC member around 2013, you would have been able to go to both Banshee and GateKeeper media day. Starting around 2015 with Fury 325 Cedar Fair stopped inviting so many clubs and club members, and the last few years at least (like Copperhead Strike at Carowinds) this has been their way of doing it: ACE members who have been in club for a while, and some other coaster clubs directors only.