To answer the question of whether the price is worth it or not, I think you have to take into consideration both the show and the meal. We treat it as more of a performance or event itself than just a meal. Personally, I think the food is good (and certainly plentiful). We do other nice dinners while we vacation (Artist Point, Spoodles, Flying Fish), so it's always nice to have a bit of "comfort" food as well.
The show is silly and wonderful. Many have described it as "corny"- the comedy is definitely a throw back to old vaudeville, family friendly fare. I think the performers here seem to have the best talent and interaction with the audience of any of the live performances at WDW. They definitely send their first-string actor/singers here.