If you've seen the show from the park - it can be sort of neat to watch it from CG observation deck (and the 2 times we went they did pipe in the music). However, it is NOT the same. As PP mentioned, the perspective and all the castle effects are completely lost from that vantage. Holiday Wishes has so so so so many cool Castle effects. Personally, I'd really want to see it from the park (and from facing the castle).