Richtone almost never has stock on any of the products that are shown via Price Spy. The offerings are almost universally touted as having the lowest price amongst competitors. When one clicks through, the Richtone site says that the item has been sold / product discontinued etc.
This appears to be a underhand method of getting to the top of the list for search results; and it seems that Richtone is getting away with it...... I would be wary of buying from such a seller in the future. BEWARE.
PS: Would PRICESPY please step in and eject this shop from their list for irregular practices, please?