I've not done much searching, but I don't think there are any decent shows like this around here. Matt and I went to that show in Cleveland last year and it was pretty alright. Not as impressive as we thought it was going to be, but I walked out with a nice haul of Saturn games. I wouldn't mind going again, just because.
Sadly, Tulsa is a bit of a haul from Michigan... so no go for me, this year.