Pi is a mystery within itself. There are people who believe that pi contains the answer to the universe, or that information is held in the digits. There are people working on discovering the answer to the mystery of pi. Besides that, there are a substantial group of people who work on memorizing the digits of pi. People have memorized thousands of digits.
Clubs exist, and it's like a contest to see who can memorize the most digits.
Also remember, the farther into pi you go, the more accurate your answers will be when you use it in equations. Impress your friends, parents, teachers, professors with your memory capabilities. I became interested in pi when I was told to do a report on any subject that interested me in eight grade. I posted a message asking for help on my report on a bulletin board on the uselessness page, and got an incredibly good response. I had pages of comments from professors, mathematicians, and pi loving folk the world over.