I wouldn't say I "cried", but definately got misty eyed at least 3 times during our last visit in September 2011. My DS, who is 6, has CP and cannot walk yet on his own, so our first night on property we went to Chef Mickey's for dinner. The characters there are great, Donald and Pluto both realized pretty quickly that DS was using the chairs and table to help get to the characters, Donald helped him walk out into the aisle and got down on the floor with him and played and also helped him stand up for pictures, then walked him back to his seat. Pluto pretty much did the same thing, they were both on the floor and Pluto, doing what a dog does, was down with him and wanting to be petted. They both had a lot of fun, then Pluto helped walk him back to his seat. That was very touching that two complete strangers, would go out of their way to make one child's visit all the more special.
That wast misty eyed moment one, the second was when we met Mickey and Minnie at MK. We had my son's walker with us just for this moment, normally he's in the stroller with little sis. Seeing him walk to Mickey and Minnie with the biggest smile on his face, my wife and I both started to lose it there, then after the visit, a random cast member opened a door and led us into the Princess room where we became the next ones to meet the Princesse's. They were all wonderful and were down on the floor with him, and they all adored him. He loved all the attention that was given to him by the three princesses.
Now finally misty eyed moment three, our last night at MK watching Wishes. Our son doesn't really pay that much attention to the fireworks, but at the very end, out of nowhere, sang along with the soundtrack "And all our wishes, will come true". That was it right there, never said a peep through the whole show, and at that moment, I lost it.