I haven't heard anything about a BW&BK show since the Montreal show they attempted got cancelled.
As far as metal stores are concerned, Ultrasound Music is in Willoughby, Ohio, about 15 miles east of downtown, right off the Vine Rd. exit on SR-2. They have a lot of vinyl, as well as a pretty big used section... they even have a separate section for doom and stoner rock. If you come here every year, then you may have visited their former location in Mentor. Same store, new location. (The place is actually going up for sale later this year, so if you've ever wanted to own your own metal store, now's your chance.)
There's another one somewhere downtown, I think, but I don't know the name of it or where it is. Maybe eppst1 or someone can point you there.