I personally adore the toys on the Premium (that Hammer of Justice and the Coffin ball lock are just so cool!), but the two play more or less the same. Metallica is not only a game I enjoy but a dream theme of mine; if you're not dead-set on getting the extra coolness of the Premium, the Pro plays just fine, and, in fact, plays more or less the same. In that case, the Pro is sufficient.