Not trying to go all "preachy" or turn this into a religious discussion, but since you asked, I guess my answer would be that yes, this level of obsession is bad. And I will be the first to admit that as I point the finger at you, I have four more pointing back at me, because I catch myself doing the same thing.
From my Christian perspective, I believe we are supposed to have our thoughts focused on God and let everything else fall behind that. To be so obsessed with Disney that it occupies your thoughts constantly is idolotry, if you really want to get technical. Like I said, I'm not just picking on you, because I find myself doing the same thing that you do. And I have to try to make a conscious effort not to let Disney be my focus in life. I enjoy Disney and don't see anything wrong with loving the place. But it IS wrong to let it become the God of one's life.