RPG Accessory: "Combat Tier: Extension Pack" [RPG]

 This little pack is meant to provide further flexibility when using the 3D Combat Tier pack (for flying or underwater combat).  Essentially, it's just a pack of four extenders.  It never hurts to have extra, but the price ($ 9.99) and the misleading packaging (which claims it also includes six extenders) means it's not good value for money.  I'd pass unless your campaign does a *lot* of 3D combat and you really feel you need more than the base set has to offer (and even then, you might just be better off investing in a second base set).