My son (age 8 at the time) and I went to Gatorland last year. I highly recommend it. As others have said, it is a welcome change of pace from the theme-park offerings. The shows were entertaining while also being informative. As Barry noted - the Jumparoo show alone is well worth the price of admission. Go, and enjoy!
We combined our visit to Gatorland with a stopover for a late lunch in Celebration. Touring this "off the beaten path" Disney town was, for us, interesting and different. A few extra photos in the album with memories as pleasant as the experience.