Consider this question on How to run/debug multiple web application projects with-in the same solution?. I put out a 200 bounty on the question, but did not get an answer from anyone other than myself that worked.
In fact, my answer is also the highest up-voted on it at this point. I know that allowing OP's to retract a bounty can be a slippery slope; in fact I think that once the bounty is put up it should stay up. But why not allow the OP to answer their own questions with a bounty and reward it to them if they receive the same up-votes as others?
Yes, I am fully aware that bounties are a risk. People will use them for numerous reasons such as trying to draw extra attention to their issues. However, in my specific question, the only valid answer is the one that I gave. Had it been anyone else's question, I would have received the bounty, but since it was my own I did not.