I love all the feedback, dialog and perspective in this thread way to go everyone, I liked quite a few of these posts. Specifically on XBOX 360, PlayStation 2 and PC you will need to have an installation of WOtG, TAUG, ROZ, and WoTG in either a physical format or a purchased download. Once you have at least those installed you can then get the rest of the add-on scenarios and battle add-ons via update on the game (Provided registration codes have been added to the account for the rest of the add-on scenarios and battle add-ons). So, if you're looking for some hard copy of the game that you can keep around (again provided that all of the expansion are registered to the account) you'll just need the first 4 available for re-installation.