If you can get there on a Tuesday or Wednesday that's the usually the replenishment days for Toys R' Us, Monday or Tuesday for Zellers. I've never seen more than a case of anything at any given store, so it's usually only the leftovers (especially now that I can only go on weekends as I'm working/staying in Barrhead during the week). There is just not enough product out there to sustain the amount of collectors in the Edmonton area, with scalpers thrown in for good measure. I got lucky a few times early on at Toys 'R Us with comic packs, but it is a lot easier for me just to ebay, internet, or hit the comic book stores now. My 25th collection would only be about a 10 or 20 figures if I just shopped local. This way I haven't had to settle for Canadian packaging yet either. Not that there's anything wrong with it, but the American style gets way more nostalgia points.
No Joes last weekend at the south side (Calgary Trail) TRU, which is the only one within reasonable striking distance for me. I did pick up the wave 9 Torpedo repack at my local comic store, so most specialty stores in Edmonton should have them as well.