I remember going to this in the 80's and 90s'. Was astounding what you could find. Is it still going? I moved to Florida in the early 00's but still have family in the Dayton area....
I used to go as a kid in the 80's with my dad every year. The Hara Arena where it was held is no more. It was closed up for years and was finally torn down a couple years ago. But the Hamvention is still going on at a new location.