I just bought Warlords & I noticed on the cover that it sayes that you must have the Vanilla version to play. I payed $50 (USD) for the Vanilla & $30 (USD) for Warlords. If I didn't have the Vanilla I would have had to $80 for Warlords. I was wondering if that is only the one I got! I thought I should post this just incase someone was thinking of waiting to buy Warlords & skip Vanilla.