I’m documenting buy the Xbox 360. An information do I need in particular: If I want to just play (without going to live and do not even want to use the old Xbox games) hard drive is essential? Why the price difference (180 € against 240) is the determining factor. So if there is enough for me that I just have to play without a hard disk? Or if in the future I want to change it, I need to have to force hard drive to load games? 10 points + complete response.