It is important to make certain that the first impression is a favorable one. You'll never have more activity on the home than you will in the first three to four weeks of the listing. The reason is simple: there are buyers out there who have seen everything available and for one reason or another, haven't bought. They are just waiting for something new to come on the market.
When that new property does hit the market, buyers and agents both will scramble to look at it. It is common knowledge that the property will usually sell for the highest price during this time. After the initial surge of interest, the only people to look at it will be those buyers new to the marketplace.