Atlanta Open general admission tickets

Hello,

I've never been to a Warhammer event before but the Open in Atlanta seems like fun. On the ticket page there's only grand narrative for $300, 40k or sigmar open for $145 and kill team open for $100. Is there no general admission if I don't want to play in the tournaments but still want to attend painting classes, shop and such?

Thank you, I apologize if this is a dumb question.