Detroit's going to be having its own bondage/kink-focused event weekend. September 26th through the 28th, 2014.
This is going to be the 6th time that they've had this. I'm very surprised that I didn't know about it. I'd be willing to bet that it's probably fantastic (there's a strong fetish/leather community up there and there will, inevitably, be people coming from all over the Midwest, Canada, etc. to go to this).
I want to go, that's for damn sure.
The website for the Exotica Detroit Fetish Weekend is right HERE.