The highlight of the fair for some is the food. Each year vendors outdo themselves to find the sweet spot. The fad for about a dozen years has been "outrageous". If eating butter weren't considered unhealthy by some, go ahead and batter a stick, then fry it in some grease. Now that's a treat!
Of course, them most popular food & beverage item as most fairs have discovered is for the adults only crowd. Wine gardens and wine competitions, and beer festivals as events within the fair itself, have become traditions in many counties. Look at the local fair schedules for announcements.