I thought the Star Wars dessert party was worth it; however, to be fair, it was when it was still outside and it was on the FIRST night of the new projections being added (this was not planned that way, we just got lucky). Also, I lucked out and bought the tickets while my son was still 9 (he turned 10 by the time of the event), so only charged for one adult and one kid (I might feel differently if I was charged an adult price for a 10 year old who can't drink alcohol, obviously)
Pirates and Pals cruise was worth it. Again, though, we had 2 adults, 9 year old, and twin 2 year olds...so we paid the price of 2 adults and 1 kid in 2015 for all 5 of us to go. My twins, now a year and a half later, still talk about it and want to do it on our next trip. I don't want to know what the price will be then!
Character meals-I don't find doing every single one worth it (especially for easy to meet characters like Mickey), but two or three over a week is a must do for us
Specialty cake-I ordered a specialty cake for my DH. He ended up getting sick before that meal, so the surprise was ruined. The cake was still really cool!
I really would have loved to add Family Magic Tour to this, but we had an injury RIGHT before the tour started, so we never got to go.