I understand it provides benefits to many of you. I've read about them on this very forum. However, for various reasons none of them apply to me.
Rather, what happens is the following sequence. I go to open Civ, and instead Steam launches. The dialogue box for on or offline appears. I choose the latter, and it immediately starts trying to connect to my account (thus indicating an... incomplete understanding of the term offline). Then nothing. I try again, and nothing. Maybe the third time is the charm? Nope, nothing.
Perhaps it's holding my playing the game hostage to going online? I pick that option instead. Then it asks for my password. The one I created almost a year ago as a condition of buying the game and haven't used since. Needless to say it's not at the front of my brain. Plus, again, I don't need it for ANYTHING.
After backing out and trying again, I don't even have the option of trying offline. The software goes directly to the password screen, but then disappears before I can even try it.
So there you go. No Civ for me.
The bottom line: I would pay Firaxis, or even Steam, $100 to not have to deal with this crap again. That's $100 more than Steam will ever make from me buying a different game.
Again, I get that Steam is great for many of you. Hopefully the above explains why it's not for some others.