Of course I have no idea what state you are in, but if the house doesn't sell by the time your listing ran out I would contact a good auctioneer before I would call the ugly houses people. The ugly houses people will tell you that the house is a piece of crap (even when it isn't) and give you a really lowball offer. Their job is to buy the house from you for next to nothing, slap a coat of paint on it and re-sell it for a large profit. They look for those that are desperate to sell.
An auction on the other hand, puts anyone that is remotely interested into a toe-to-toe competetion and only the person willing to pay the most walks away with it. Of course, as the owner you can either either choose to sell the house "absolute" meaning that you are willing to take the highest bid regardless of what it may be or you can place a reserve on it meaning that you won't take less than $XX for it. Also, (at least here in my town) the auctioneer is paid pretty much by the buyer in the way of a "Buyers Premium" and the cost to the seller only ends up being 1% to 2%. Also, the beauty of an auction is in the fact that the house sells as is and there isn't any contingencies at all! It is not subject to a home inspection, any repairs, not even financing! I used to work for an auctioneer and to be frankly honest, when I go to sell my home in the next few years, this will be the ONLY way I will go.