I suggest checking out Sarah Weisman's blog about the MWA exclusion of self-published books, and so exclusion of some undeniably great books including 'Songs of Innocence' by Charles Ardai, from consideration for the Edgar Award.
Most of the comments, pro and con, are surprising reasonable and well thought out. With the exception of I.J.Parker saying: "It seems to me that the choice lies in the hands of the authors. If inclusion in the Edgars matters to them, then they should not self-publish those works they wish submitted for judging."
Which is right up there with suggesting that women should have children to minutely reduce their chances of getting breast cancer, or for the tax breaks. (As opposed, just for example, to actually wishing to be a mother and raise a child to the very best of their abilities)