Appraisals are required on all new loans. Buyers realize that, to get a loan to purchase your home, a lender will have to agree to the value. Overpricing invariably lengthens time on the market. Overpricing tends to dampen the other salesperson's enthusiasm for your property, making it less likely that it will be shown. Overpricing invariably results in a lower selling price than could otherwise have been obtained.
Properties have to be shown to be sold.