> lets Apple know what the defect rate is, which for some reason the manufacturers are reluctant in telling Apple My suspicion is that an unknown but nontrivia

> lets Apple know what the defect rate is, which for some reason the manufacturers are reluctant in telling Apple My suspicion is that an unknown but nontrivial share of the 'defects' were of the 'fell off a truck' variety rather than a true production problem. Alternatively, Apple might have contracts that pay its suppliers 'cost plus', such that Apple is on the hook for used supplies without giving the vendors a direct financial incentive to reduce defect rate.