2 words, my canadian friend... warrantee support.
think of the pain to ship a gun across the border
Just a suggestion: stop by Para Ordnance. Their HQ is local to you in Toronto:
Phone: (416) 297-7855
Para-Ordnance Mfg. Inc
980 Tapscott Road
Canada, M1X 1C3
They made their name on high cap 1911s with oversize extractors, but also produce single stacks.