One reason is lack of research & getting carried away when bidding. I have seen people pay more for a used Yaesu 2900 on eBay (e.g. $180 after shipping) than you can buy a brand new one at retail (~ $165 incl. tax). There are also currently plenty of new Yaesu 2900s selling on eBay in the $230-240 range after shipping i.e. $65-$75 over market value.There must be a reason people are willing to pay as much (or more) for a used radio rather a new one.