There is so much to do on-site besides the four parks. The resorts are great to walk around and enjoy. AKL has the animals to look at, there's walking and biking trails at some of the resorts, there's fishing at some of them, Ft. Wilderness has the campfire and sing-a-long in the evening and I think there's hiking there too. There's mini-golf courses and of course the water parks. There's alot to do at Downtown Disney. So I don't think 9 days is too many days. We have gone for 6 days three times and have not been able to see or do half of what we have wanted. We have done the parks, see a few of the resorts but outside of that, there's still much we haven't seen. I don't think we will get back to Disney again but if I was ever able to go, I would love to go for two weeks and even then I don't think it would be enough.