In the 1970s, The Royal Canadian Golf Association decided to make Glen Abbey, outside Toronto, as the permanent site for the Canadian Open. Between 1977 and 2000, 22 of the 24 Opens were played there, the two exceptions being at Royal Montreal in 1980 and 1997. Since that time, the RCGA has been moving the Open around, primarily in southern Ontario, occasionally at Royal Montreal and once out here on the west coast at Shaughnessy, which will also host the Open in 2011.
I think if you ask anyone in the Toronto area if it was successful to have the Open at Glen Abbey each year, they would be very positive. If you asked any serious golfer in western Canada, they would have been negative. It is also significant that in Canada, there are no other PGA events in additon to the Open. For 7 years starting in the late 90s we had the Greater Vancouver Open, which became the Air Canada Championship before it crashed and burned for lack of a sponsor.
I am not sure but I think the reasoning for establishing the Open at Glen Abbey was the Augusta effect, ie. a course that to the country and the golfing public elsewhere, becomes recognizable, hopefully in a positive way. As Glen Abbey is owned by the RCGA, there would have been obvious monetary benefits to them and with the population base in southern Ontario, it makes some sense that more revenue would be generated. Those who are cynical simply say that as Toronto purports to be the center of the universe, they were greedy and did not want to spread it around the country. Dale Jackson of this discussion group is on the Board of the RCGA and can probably give more accurate information than I ever could hope to provide and may join in.
Personally, I believe the Open of any country should move around, play classic and modern courses in all locations, so as to show off the entire country and support the golfing communities in all areas. Many believe the Canadian Open should also go to the Prairies (Calgary? Banff?) and the maritimes where there are fine courses but a smaller population. If the US Open were to go to one site, the rest of the country would revolt, rightfully so.
Bob J