It's a problem for most sellers. The majority of items don't sell because there are too many listings. As I write there are nearly a quarter of a million listed under coins of which 110,000 are British. There isn't time to look. So unless you find two people searching for the same item you find that most will sell for opening bids at best. That's why so many are on BIN now. Personally, I don't bother looking any more as I don't have the time to plough through hundreds of pages and only look when given a heads up these days. What used to take 20 mins is now a full time job. The fact that most go to the same person suggests that he/she is happy with what you have sold, but as long as they start at £1, then that person will continue to acquire at that price. 10 years ago or more you only had one or two thousand listings and the %age of quality listing was better.