Well, if you have a blog, without some kind of promotion the only reader you will have is you. Maybe your mother, too. Of course, original content (and good original content) is what it should be... Writing for the sake of writing (i.e. blogging about blogging just to make money off bloggers) is like some perverted pyramidal scheme.

I wrote this as a guest post from my own experience for sharing my posts, where I write (except maybe in some case, I can be sure after more than 700 posts) only original content. But before I started actively promoting my content, I had mostly readers coming from Google to a few selected places (very few). After good promotion, my posts started finding readers, and when they were interested, they delved deeper in my blog, finding my old posts. My subscribers grew (I've tripled since I started my blog seriously), and so did my interactions.

But as you say, there are zillions of repetitions among the blogosphere (I've seen it also, all over the place) and this is completely sick. But as it stands, it is and endless run: if I create good original content without promotion, the repetition people will just fill the place and no-one will read what I have to say. And I enjoy too much blogging (blogging with readers... if I want to write for myself, I'll do journaling) to be forced to give up.