When I play an offline game, its usually because there's a storm outside that is killing my internet connection. Which generally means if I'm playing a single player PC game, I can't log into an online disguised DRM system. When I want to play a single player game, I want to play the game. Not wait for Steam to update, then wait for it to do an automatic update of the game, etc etc etc. And even though I keep it in Offline mode for games that I absolutely have to launch through Steam, it still manages to reset to regular mode every so often.
So yeah, when I see "Powered by Steam" on a game box, I typically put it back unless its something REALLY good that I can't afford not to play (like an Elder Scrolls game, or Civilization), and even then I replace the Steam shortcut with one directly to the game executable so that Steam never gets a chance to launch.
I hate Steam, I hate Origin, I hate all of these online DRM systems that require online connectivity for a single player game.
And thats without even getting into the potential privacy concerns about having a commercial third party application that wants to run silently in the background at all times that is capable of scanning everything you do on your computer and sending it all back to corporate and just trusting that they won't abuse that power (EA says Hi, btw).