Just in my immediate area I could go to (when they're being held that is):
A peach festival, a garlic festival, a chocolate festival, the state fair which is like a giant stereotype all of its own, an apricot festival, a Sturgis satellite thing, classic car festival and tribute to American Graffiti fucking up traffic downtown, and so many more I haven't personally been to or even heard of, I'm sure.
We celebrate everything because then we have an excuse to party.
I go to Wurstfest almost every year. I couldn't make it this year for personal reasons. I just love the fact that there's a whole festival about sausages. That's it. There's also plenty of beer, dancing, and music but mostly they just want you to put their sausage in your mouth.
The city I grew up in is home to the "world's largest" Bratfest. The sell close to 300k brats every year (and it's hosted in a city with a population of about 280k!)
Wisconsin gets fucking serious about their German sausages. There's a joint down from y'all's state capital that used to serve a pretty good cheddarwurst but it's been a few years since I've been.