Pella, Iowa a short drive away is usually where I’ve stayed over the years. Usually several good options there.
As far as your disappointment for an Indiana club racing against this event. I believe USAC/CRA has a race scheduled for July 6th.
Not everybody is cut out to race a USAC show on a big half mile. I’m glad there are options. Maybe that Indiana club has always raced that weekend, IDK? It is what it is.