To stay on topic:::::::
if priced right, i'd say its worth the value. Game, silver holographic trading cards, Art book, mousepad, Behind the scenes DVD, and soundtrack. Plus vanity in-game pet.
I've owned the collector editions of Burning Crusade, and LichKing. They make good wall space. Its really a bone to the fans. Just folks who buy special editions of their favorite DVD/blu-Ray movies.