In 1983 Disneyland decided to move the opening day classic attraction Dumbo the Fying Elephant when they created new Fantasyland. Dumbo was placed in an area where Skull Rock had previously stood. This move demonstrated that Disney was open to the idea that the park could constantly change and evolve to suit guest needs.
without this mindset the area would have remained a stagnant area in the park. The move allowed for better crowd flow, for new attractions to be added and for existing ones to be updated. Ensuring that Fantasyland remained a popular destination for visitors of generations.
Growing up in Los Angeles in the 70s/80s we visited Disneyland on a regular basis and often after school, before "Annual Passes".