Geared entry-level Dahon HT060, manufactured for the Chinese market, sells for 900 yuan, i.e. $130, in China. At first sight, the bike is of surprisingly good quality for the money. I do not know about long-term use. The bike is offered on Ebay in various markets, possibly brought over by private importers. As a reference, trash-brand folders may be offered in Chinese Walmarts or Carrefours for half this much.