When you are involved in magic on a regular basis, either as a performer or even as an informed observer, it becomes increasingly difficult for magic effects to recreate in your mind that stunning feeling of total wonder that it can cause in the uninitiated.
If you think back to when you were a child, perhaps, and you experienced magic for the first time, those feelings of awe, amazement and the thrill of witnessing the impossible, would have really excited you. But as with any experience, the more you have it the more likely it is that you will become gradually immune to the effects of the situation, and so it is with magic.