I have physical media for some of my games that are "steam" connected. I cannot lend these to another person, nor give them to another even in my own household because they are locked to my account in Steam.
I cannot play some of my Steam, actually I think I only have one that will play, without first connecting to Steam.
So if Gabe wants to sell us on a brave new world perhaps he should free the games Steam holds hostage now.
Every steam game I own requires the steam client to be running while I am playing the game, the games become bricked if I remove steam so this is DRM. I can go into offline mode for most games, but the client must always be there.
Installing the game requires both the steam client and a connection, this is authorizing the install and is DRM.