8 homes have sold in the last 6 months ranging from 200 to 590K and ranging in time from 2 months to 15 months. It all depends on how well the house was priced to start and how well did it show. The ones that stayed on the market the longest are those that have dropped in price over 80K over the listing period. This tells me that it was overpriced when it was first listed.
Right now there are 21 homes on the market just in your immediate neighborhood on Valley View, Wood Dale and Hickory Knob, Lake Ridge has over 100 and of course some of those are foreclosures.
I will be very happy to visit and let you know my opinion on how your house compares to others in the area and what price range it belongs in.