According to Business Insider, China offers more benefits than just cost-savings and that's why major manufacturers of electronics such as Apple, build devices there!
• Most of the components of iPhones and iPads — the supply chain — are now manufactured in China!
• China's factories are now far bigger and more nimble than those in the United States. They can change production practices and speeds extremely rapidly.
• China now has a far bigger supply of appropriately-qualified engineers than the U.S.!
• China's workforce is much hungrier and more frugal than many of their counterparts in the United States.