Good question but,
with all the rooms avaliable near by there won't be 8000 at the Fairground!
And with Carmi being a god 50 mile commute I doubt if many will try that option. Commuting really limits your intake at the beer hall
I'm thinking I'll do as I have in the past, Camp at the fairground, but get 1 room somewhere off site that I'll share with my club members to use as a pit stop! Shower, toilet and A/C / pool if needed! We really liked having a pool last year in Lima.