They origanal plan was to make Cedar point the "Fort Lauderdale of the Noth" and were going to remove everything and build 1000 expensive ranch-style homes on the property. It would be a nice place to live, location wise, but I'm glad it didn't happen.
In 1983, MCA recreational services of California began buying up a lot of the companys stock, in which the park feared the possibility of a corporate takeover. Fortunatly, nothing materialized from this effort.
There are 2 books, "Cedar Point: The Queen of American Watering Places" by Davis W Francis and Diane Di Mali Francis. The first edition of this book was written in 1988, the expanded 125th anniversary special addition was written in 1995. Both are out of print, but you can check libraries in the Cleveland area for them.
There is also a Video "Cedar Point Memories" which shows a significent documentery on the park. Im not sure whether or not thats still available yet or not. I don't think so.