I think a Fantasmic DESSERT package is only offered in DL. That package also brings special seating, which can be worth it how DL's Fantasmic is set up (it doesn't have a theatre - you watch from regular spots in the park). WDW has a Fantasmic DINNER package - which the above poster commented on. The WDW package "guarantees" you a seat for the show without having to wait in line for up to 2 hours (as some do in busy times).