So while it's great that I rank for "poodle training*," most of my visitors find my site when they search for "how do I keep my poodle from peeing on the floor*," or such (*not my keywords).
This tells me two things.
First, if you have a thin site, you're only hurting yourself. If you're indexed and ranking, more content will bring you more visitors.
Second and most important, the guy who is looking for help to keep his dog from peeing on the floor doesn't want spun junk. He has a need and wants someone to help him. If you give him real content related to his search, he'll likely stay around long enough to opt in to your report, to buy your product or to click on your affiliate links. If he sees meaningless spun drivel, he'll hit the back button.
Why would anyone want to serve up garbage to over half of their guests?
There will be those who say, "but what about using spun articles for backlinks?" If that's all you're interested in, just pay someone for an Xrumer blast. I think of things a little differently, however. My distributed content is a widening of my net. If someone reads my content away from my site, there are decent odds that they'll click through to read more. Just like with the long tail keywords, none pulls in a bunch, but the cumulative effect is worthwhile - plus I have backlinks.
What about those who say, "but ______________ creates quality spun articles." I still think you're focus is in the wrong place. If you put as much effort and thought in your visitors as you do in producing quantity, you'd have five times the results you're seeing now.
What are your thoughts?