Eastern Great Lakes Region (Michigan & Ohio)

What are the coasters or parks that you missed out on because you were not yet an enthusiast when you had the chance to experience them?

For example: I lived in Detroit in the mid 80's to the mid 90's and I never visited Boblo Island even though it wasn't that far from me. I went to Cedar Point countless times because it was the bigger park, I didn't appreciate that I was missing out on an experience that I now will be able to have.

It's tricky for me because so many parks I missed out on were when I was a kid, and family circumstances kept me from going most places. We went to Kings Island (and Worlds of Adventure exactly once) because company picnics were held there. I did what I could in later years, but missed most of Geauga Lake, as well as LeSourdsville due to this, and never got to Conneaut.