The Ohio Farm Science Review is great. They have alot of field demos including harvesting, notill drilling, and strip till. They also have their own grain facility. Along kinda of a midway they have tents of most all of the major suppliers of equipment and other farm related things. Its put on by OSU. Its located outside of london, Ohio, a few minutes away from the Headqaurters of the nations largest JD dealer. And about 20 minutes from hotels and good eats. I dont remember their website but you can go to search engine and type in Farm Science Review and im sure youll find it right away.