No, and hardly I ever will. I'm buying my games exclusively online, and in the last time I purchased a lot downloadable stuff from Gamersgate, but no online distributor so far forced his spyware and questionable community accounts upon me.
When it was reveled that ciV would have an "in game community hub" (i believe that was the wording) did that bother you to start with? As it was known for a while that it was coming, though only now do we know its based on steam. If it was firaxis's backend system running the community hub thing, rather than steam, would you have any issues with that part of it?
And while I can see your objections to steam, its not spyware. A key part of spyware is that it installs itself either pretending to be something else, or without your knowledge. We all know what steam is and that it comes with ciV. You can shut it down or uninstall it and it wont object, like real spyware does.