I found Felix Laband (the South Africa artist) music at the Montreal show a few years ago. Totally electronic and a bit off from the general publics taste for pop but it's a refreshing change for me.
The next Canada show I discovered "I'm New Here," a super album by Gil Scott Heron. Sadly Mr. Heron died May 2011.
Marakanetz is somewhat correct, some rooms play the same old tired audiophile hits, hoping the problems that come with show demos are minimized.
However, the few gems I've found are priceless so I keep looking.