So if I am hearing you correctly, It would be better to spend the $600 on 10 quality articles than the 40?
No. If you were hearing me correctly you'd have heard me say to not to use content writers :). If you're an expert in your market/niche, then write the articles yourself.
Assuming I do so, how do I solve the problem of getting quality blogs to let me place them? Or should I keep them as original content on my site?
Nothing wrong with getting a good guest post on a true authority blog. But you're right, gaining contact is difficult. Which is a good thing, keeps out the nonsense.
I suggest you are taking the wrong approach. Rather than creating X number of mediocre articles and then going to some place to get them all published, go target your dream blogs and get connected with them - write the content after you've got acceptance of publication.
When you contact the blogs, tell them you'll offer them three subjects (make them good ones, not crap written by outsourced authors) that they can pick from for you to write. Then offer that you'll write the article and they'll publish only after they've seen the article, and only if they like the article at that time. Assure them they can discard you at any time, no obligation.
That's about the only way to initially get on to the real top blogs. I use other methods to get bloggers attention, but it's a whole lot of work.
If the articles are actually expert level, then all you need is one published. You can then use that one as kind of a reference when approaching other bloggers,i.e. see my other guest post over here.
Of course that won't work if you're outsourcing the content writing. Because if you approach a top blogger and point to your previous 'work', they'll ignore you. Again, unique doesn't do it for them, it's got to be quality.
Now, if you've got top *quality* content, then even the top bloggers are hungry to talk to you. Fortunately for you, hardly any body is doing quality content. THey're all outsourcing their content to professional writers..right: :)
FWIW, I've got an almost-lock on the top bloggers in my niche. A national newspaper recently did their annual 'top 10 bloggers' in my niche, and almost every one of the couple dozen they named look to me first for articles on my subject. I recently 'caught' one republishing articles from a competitor, they won't be doing that again (I explained why it was bad for their site).