Hi KG
I think you're safe from invading Canadians: they'd much rather move somewhere warmer than the Canadian Median. Vancouver, Bermuda and Southern Spain all spring to mind.
That and most Canuks would find Chicago "Pie" conflicting with their understanding of "Pizza", even the west coast ones that have been acclimatized by the presence of spinach and broccoli in their wierdo pizza combos.
Scott Martin
(who is 5 1/2 hours away by aircraft, let alone MAGLEV, but a periodic visitor to Allen Park (a Ford Suburb of Detroit) usually at the cold parts of the year...)