Every single one of them got paid too, it wasn't even spec work. They did work, they got paid.
Now, I wasn't being sarcastic when I said that I'm glad you've satisfactorily solved your problem. Further, I'm glad that everyone you contacted got paid. But that doesn't address the problems which I see, which are that 1) it wasn't a very business or worker friendly (yes, in my opinion) move and 2) I think you could've done better.
business/worker friendly: I think it's hard to judge. I had an outsourcing company in Indonesia once. The salaries there, if they could get constant work for $2.50/hour they would have better off than what we were paying.
done better: probably. I invested $30. I hope there are better options. How much money and time they would/will cost is a different matter though.
I actually had a free one designed by a really talented guy here on HN, but it was for a different brand name that we didn't end up being able to use. (If you're curious: http://kevinohashi.com/sites/default/files/mention.png)
Really? As if that doesn't apply to literally every other profession? I certainly don't mean to say that the logo is the end-all solution to a user's experience– that's ridiculous. People can pay $1000, $10k, $100k even and still end up with shitty branding but the point isn't that quality necessarily scales to how much you pay. It's the fact that on the other side is a person providing a dedicated and unique service who is effectively being bet against (1/6) for less than minimum wage.
And unfortunately, yes there are developers who will work for practically nothing. Unsurprisingly, they are quite underrepresented in places like this and on virtually every other plane because the work they can do for that sort of money is just like 99.999% of $5 logos– total garbage. And what kind of a living do you make when all you can make is garbage?