To be honest it probably feels cheeky...but if you accept it you can get on with your lives.
We could say we "lost"loads on our house as it went on the market about 2 months too late...just as the market began to falter. However after 18 months trying to sell - once we did accept an offer we did actually just feel relieved. If you don't have to sell - wait till the recession is over - if you need to sell I'd accept it and try to think about if you've made since you bought it. Its only worth what someone is willing to pay and unfortunately no-one is wiling to pay very much at the moment - irrespective of where you are moving on to.