I've been to most of the game stores around toronto looking for board games and I've found that this place is the cheapest around. And... it has a pretty good selection of games.
When you first come here, you'll notice that it's incredibly hard to find. Reason why? It's in a loft that has been converted to a "store". Plus... it's only open on Tuesdays and Thursdays from 5-10pm. Don't worry though, there's always a lot of people that are eager to play board games on one of their many tables there.
When you first walk in, it just screams basement operation... but instead of basement... it's a loft. Guess it's a step above the rest... remember to take off your shoes =)
Probably the best thing about this place is that they price match any other place in toronto. Just tell them where and they'll match it. How can you go wrong?