I chose a Wishes DP at Sago Cay for a few reasons...
1. Illuminations is not as spectacular as when I was a kids IMO
2. I could not bring myself to pay a "viewing fee" for my guests
3. I was afraid what would happened if it rained (even though this is a concern for any DP)
So it did drizzle on the night of my DP, and we had the food in a ballroom at the GF. Then we went outside to view the fireworks. Photography wasn't an issue, my sister took photos of us. I did not get the music piped in because of cost...just seemed a little too pricey for 10 minutes worth of music.
We had a good time and I am glad I did it, but it was not really an essential part of the day.
Good luck!