I think its all about your connections and who you know and how tight you are wit them.

My buddy can get me about a quatch for 20 bucks canadian, but thats cause his good buddy's dad give him free weed to sell.

Winnipeg prices for shit range..
10-20 bucks a g if its over 10 it has to be like white widow or some shit.
30-40 for an 8th of dope shit
50-60 for quatch. 60 at a quatch it better be phat
90-130 for half o
150-230 ounce