Fair or not, reputation and corporate history allows different companies to get away with different things. Valve doesn't exactly have a reputation for turning

Fair or not, reputation and corporate history allows different companies to get away with different things. Valve doesn't exactly have a reputation for turning off DRM servers, killing multiplayer servers for old games, and abandoning entire product lines and/or brands. Conversely, nobody whines about Microsoft not releasing new versions of Halo, (or games in general with the number "3" in their title).