Firstly, which version of the Fiddy are you talking about? Every little factory in China will have a Fiddy, so they may only make 500 a year each, however it's most likely a lot more cases. The same fiddy case is used in these $500 superfiddies that is used in the $100 bargainfiddies.
What you have to remember is break-even is exceedingly low in China. You need a run of merely 150-500 super-reps to make it profitable on Chinese wages and economy.