Comment It's about gamepads and Big Picture mode (Score 1) 271
Why though does it need to be a Steam Box if it's really just a PC with SteamOS on it?
Because it ships with a gamepad and has a case designed to fit in next to a television. Your average PC has a massive case by consumer electronics standards: it makes Microsoft's infamously "XBOX HUEG" consoles look like a Wii or a PC Engine. It also ships with a mouse and keyboard and is marketed for use at a desk with a 19-24" desktop monitor. This is not the best fit for the sorts of games traditionally played on televisions, especially games that allow offline multiplayer using multiple gamepads. SteamOS and Steam Machine appear to be efforts to get more controller-friendly, Big Picture-ready games onto Steam.