Letters to the Editor worked for P.T. Barnum and Houdini but who reads newspapers today?
I tend to think mostly elderly people still read newspapers.....
When was the last time a group of senior citizens arrived to pay to see your haunt?
I also think that letters to the editor must have some bone of contention to them, some discussion or argument, difference of opinion to generate some mental activity.
Barnum and Houdini's letters had this.
Barnum was protesting criticism about his display and owning of a very elderly black (slave) woman who claimed to have been George Washington's nanny, Houdini and his brother had a letter war saying how crappy each other's show was as they appeared across the street from one another, of course it was a secret they were brothers and the brother's act was Houdini's old act from the year before.