I live about an hour and fifteen minutes from Niagara Falls yet haven't made it up there on a photo-taking mission yet. Last time we really visited was probably 8-9 years ago, in the early days of dating my wife.
We do go past the falls occasionally to visit other places in Canada, in fact I just turned down an invite to go up there this past Saturday, but maybe one of these days... It would be fun to go in the winter and we're close enough that we can more or less go on a moment's notice.
And man, that little strip on the Canada side is a real tourist trap, eh? Ripley's, wax museum, alien museum, etc, etc...