Statistics routinely show that a home sparks the most interest from other real estate agents and prospective buyers during the first two weeks (or less) that it's on the market. This level of excitement reduces dramatically over time, affecting the final selling price.
Ultimately, you are the person who will determine the listing price of your home. An important part in doing this is to have your listing broker do a Comparative Market Analysis (CMA) for your home. As your listing broker, I will take into account the neighborhood, the current real estate market, the condition of the house, and the most recent comparable listings and sales in your neighborhood.
One reason I love my job is because it allows me to work with people on such a personal project. Pricing it is one aspect that requires some personal detachment, and a fresh, educated and intuitive eye, along with nuanced responsiveness to the market.