Comparing CC (US) and 'The Source' (CC in Canada) sounds like two completely different stores. I don't think The Source makes to much of a dent in the BB/FS machine in Canada. The Source definitely lacks in audio/video equipment by comparison. 2001 Audio Video, Trutone, avu.ca (audio video), Soundsaround (western Can), Telecity...there's a number of smaller chains in Canada than BB/FS. Where they can't necessarily compete with volume they have far less overhead to deal with...a lot of people out there, though, don't realize you can negotiate prices. It's too bad about CC though, I guess this is how capitalism works. Maybe in the future there will only be a handfull of companies left which will dwarf the largest companies around now.
