If I buy a game on Steam and I'm running it on Windows, I can go to one of the Steam machines and already have the game. So you benefit as a developer; you benefit as a consumer in having the PC experience extended in the living room.
Gabe NewellThe big problem that is holding back Linux is games. People don't realize how critical games are in driving consumer purchasing behavior. We want to make it as easy as possible for the 2,500 games on Steam to run on Linux as well.
Gabe NewellIn order for innovation to happen, a bunch of things that aren't happening on closed platforms need to occur. Valve wouldn't exist today without the PC, or Epic, or Zynga, or Google. They all wouldn't have existed without the openness of the platform. There's a strong tempation to close the platform, because they look at what they can accomplish when they limit the competitors' access to the platform, and they say 'That's really exciting.'
Gabe Newell