I think you proved my point.
There are two other bridges you can cross the border with: the Rainbow and Whirlpool bridges. And there's the International Railroad bridge if you want to develop a Canadian football train.
These are tropes and don't apply to every situation. Go to Baltimore on game days and see the impact M&T stadium has on its downtown. Of course if you build a stadium in the middle of nowhere then, yes, impact is minimal.