It all depends on what degree of control you keep over the manufacture process - unless you keep really strict controls (and preferably have your own factory there) they tend to randomly cheapen the product (and presumably pocket the extra savings).
There was a guy on here who's company was having electronic toys manufactured in China, first batch were to spec and spot on - second batch were made using toxic lead based paint!.
It all depends on what degree of control you keep over the manufacture process - unless you keep really strict controls (and preferably have your own factory there) they tend to randomly cheapen the product (and presumably pocket the extra savings).
There was a guy on here who's company was having electronic toys manufactured in China, first batch were to spec and spot on - second batch were made using toxic lead based paint!.