My experiences have been different at DF. I've consigned about 10 guns with them over the last few years and I price realistically. Most of the rifles have sold within days of being consigned with the last two being sold within hours. I do have two pistols with them currently that I realize may not be sold anytime soon due to their caliber (.40 S&W), but that's not their fault. The market is flooded with 40's right now.
I do have a buddy who has a couple of rifles on consignment there that frankly, he wants too much for. The fear market that he was hoping to take advantage of, isn't particularly interested in a $2k black rifle. So they have sat for months there.