Len Rhodes has been the most vocal about this, complaining that the fall games are the reason for the Eskimos attendance issues, yet he never mention how the Summer games look empty as well. Empty seats in the fall is usually because teams have very little to play for until the playoffs start, Calgary and Winnipeg didn't sell out their playoff games because of where to markets are currently at right now and not because of weather IMO.
CFL "fans" always seem to look for excuses not to go to games.
Bookmarks