Our product listings are constantly being revised and updated with the latest information and availability. Occasionally the demand or pricing of an item outpaces our ability to update. Our items are available for sale in multiple venues and marketplaces; therefore, on occasion, there are overlaps which may result in an item becoming unavailable very quickly without enough time to update all the other marketplaces. Please understand we do our best to keep our sites updated regularly as quickly as possible. This is simply a result of the natural effects of marketing our products in multiple venues.