The merchandise this store merchant is selling is allegedly fake. They allegedly sell counterfeit Adidas, Fila, Nike, and other brands. As you can see in the video, the store salesperson is literally begging the potential customer heard in the YouTube.com video for the best price, and pressing him to change his mind on prices the customer blurts out. If this was authentic merchandise, the store sales clerk wouldn't have to budge with any customer on prices.
The hypothesis made on merchandise sold in China is most of it is fake. They are hard workers make no mistake. But a majority of their goods that claim to be of certain brands are "highly questionable."