Listing agents set out to sell your home at fair market value. It might seem logical to set a listing price for your home based on a tax or refinancing valuation, or to set a price that earns you a certain amount of money after closing costs. However, especially in a buyer's market, it isn't always realistic to expect your ideal price. Telling a listing agent you will only sell for your dream price can have several negative results. The agent might decline to take your business if they feel that you're too unrealistic about the market. If an agent does accept your listing price, they are only wasting your time. Houses priced above the market tend to stay listed for much longer, and the longer a house is on the market, the lower the sales price tends to be. Even if an agent tries to do his or her best by you and stick with your listing price, buyers will only be scared away. It's better to take your agent's advice about what the market will bear.