Fair point. But even so I think SteamOS has the most viable potential to achieve something like a 5-10% adoption rate that could get entities like nVidia to pay more attention.

Maybe. I just mean once(if) there becomes an OS that reliably runs Steam and the games on Steam, there will be a viable alternative to Windows for a significant population of users.

I think once Valve polishes SteamOS for desktop environments there will be actual largescale migration.