Sam is right, a property is only worth what someone is willing to pay for it.
Getting people in is all about the advertising, good pictures, detailed brochures with info on local area and an agent that doesn't lie through their back teeth to you helps a fair bit too. If it looks good on the web or in the paper then people will enquire, if it's in a good spot for people to see the board and if its on at a reasonable price then you're going to get interest. But, once people are in - are they liking what they see? People are fickle and shallow these days - can't see past what's put in front of their faces - like with the decoration. In an ideal world, prospective purchasers would see past that and think about what it would look like once they put their own touch on it, but they don't - they want so much for as little as possible so everything has to be done for them.
Another issue is the competition, with 80% of buyers being investors, they can buy repossessions below market value, do them up then rent them out. Does your property appeal to investers, first time buyers or families that will more than likely have their own house to sell?
Theres so much to take into account when it comes to selling a property in this current climate, but its not going to get any better for at least 3/4 years. House prices will take another dip, so its better to take the chance on a lower offer now than wait and your property only be worth less in the future.
Sorry to ramble