Caveat emptor: tactics of lot of Chinese sellers on Amazon today.
Unsurprisingly, a lot of sellers from Asia are now looking at Amazon as good trading front for their business. While not being stereotypical and there are always exceptions, there are a awful lot of "cost effective goods" sellers here (read: awful goods when you truly get what you pay for). I have found (by my own prolonged experience) that great amount of these sellers on Amazon nowadays employ following tactics (almost identical, save by bits of difference here and there):