You need an HDD though. No HDD means you can't do FW updates, save games, BR data, play games that require the HDD [Uncharted 2 for example which SONY marketed as a huge title]. SONY would have to allow the PS3 to use removable storage meduims for some of these features and even then, it's too late because of non-optional installs.
4 ≈ One







