There used to be a gentleman that would be Santa Claus at the John Hancock center in Chicago, and I went to see him for 17 years (would've been 18, but the building's new owners got rid of the Xmas event).
So because it was the same guy each year -- same smile, same laughter, and same energy -- I was convinced as a kid that Santa Claus decided to live in Chicago. Like, he still went to the North Pole to check on Christmas stuff, but he and Mrs. Claus had a place in Chicago.
As I got older, I figured out it wasn't the case, but I still loved going with my family because, let's face it -- the guy was a sweetheart. Always asked the families how they were doing, he always enjoyed the pictures kids would bring him. He was even in the Chicago Christmas parade a few times. Whether he was Santa or not didn't really make a difference now -- this was a guy who loved to spread joy around.