As for Ontario Place not having any NIMBYs, you're wrong.
I don't live anywhere close to Ontario Place but I will be screaming my head off louder than any NIMBY if McGuinty tries to turn Ontario Place into a casino. I love Ontario Place and its futuristic floating pods, along with the historic Cinesphere. To this day, I still marvel at it's architectural awesomeness and beautiful setting. That is my favourite place on our waterfront and I am not going to let my Ontario Place be destroyed that easily. I am not alone in that regard. There are MANY people in Toronto who love the architecture and setting of Ontario Place (if not the actual attractions, which could easily be upgraded) and want to see it preserved as a place for the whole family, so in that sense, OP has many NIMBYs all over Toronto and even the GTA.
I want to see Ontario Place become the amazing park Dalton McGuinty promised us. I'm holding him to his word. (and so should all of you)
So many people on this site have trashed Toronto claiming we don't have enough tourist attractions to compete with other major cities but then you're the first ones to want to trash one of them, instead of trying to make it better. Why not keep Ontario Place for everyone and put the casino in another location, thereby adding to our tourist attractions. You can have your cake and eat it too. It just takes some compromise, to make everyone happy.