Why are so many Christmas movies set in or near Chicago?

Watching A Bad Moms Christmas today made me realize: a lot of Christmas movies are set in Chicagoland. Think about it: Christmas Vacation, The Santa Claus movies, the aforementioned ABMC, Home Alone. A Christmas Story is set in nearby northern Indiana. Even Planes, Trains, and Automobiles (though its a Thanksgiving movie). I'm sure there are others I'm forgetting.Is it because Chicago is (arguably) the most well known US city that's neither LA or NY? Because it's guaranteed to have snow at Christmas? Or something else I'm missing? via /r/movies https://ift.tt/v0SRm2d