My wife and I will be driving our Vette to Effingham for the FunFest this year. We went last year for the first time and we really enjoyed it. Last year it was the weekend right after the 9/11 tragedy so the mood was a bit somber as a result of that, but, approx. 3,500 beautiful Vette's still showed up for the event. That was the lowest total they had in attendance for the last few year. Fortunately, they are not all C5's. Lots of C3's were there last year. If you have never been to Mid-America's facility you are in for a great experience. Their "MY Garage" is a car-lover's (especially a Corvette) dream come true.
I'm not sure what all is planned this year, but, there will be lots of interesting ways to spend your day. Last year (I assume they always do this) they had a large tent with reduced price items for sale, exhaust systems on actual cars to listen to then you can purchase your choice and have it installed in a matter of minutes, plenty of food, and an evening live band concert.
It's a great time and the price is right. You won't be disappointed.