I hate saying this, as it sounds like I'm just bitter, but this really could be enough to finally leverage me off of google. Reader is by far my most used app of theirs. Plus is garbage in comparison.
I am the say way. And I feel that my heavy use of Gmail and Google Reader meant that I was more likely to use other Google products when needed, ie Docs, Calendar. Without Reader, I don't feel like a Google user, just a Gmail user.