Here's the "benefit,"
Including that sale would contribute to lowering the median price for the neighboorhood, and if everyone did that, lowering it for the region. Now, lowering the price (within "reason"), on a house far above the median price, will actually RAISE the median when the below median houses are not selling.
So, this would be considered a FSBO? Therefore no commissions involved. Yet another reason to ignore it.
I blame this blog for my enlightened cynicism...