A seller puts their home on the market and then waits for the offers. BUT - they don't come. In fact 40 or 50 people look at their home and nothing happens. No one has any NEGATIVE feedback, everyone says "it's a nice house", but no one makes an offer.
Simple - the home is competeing against other homes that offer more for the same money. People are looking at this home and then looking at other homes and saying, "the other homes are a better buy". There is only one way to fix this problem...
Lower the price. Once YOUR home is the best buy among a group of similarly priced homes, you'll get an offer. Just because you want to get more, doesn't mean someone will pay more.