[esteth]

I think allowing a small margin is fair, for the same reason as potatoes. When you manufacture a module some portion of the module will be unusable and disabled in testing.

In CPU-land this is done by manufacturers already - they manufacture many of the same generation of processor as the most performant version, and then test the individual items produced, disabling poorly constructed parts and downgrading the specification as they do it until they're left with a range of products at various performance points.

[ciupicri]

They should do the same with USB sticks, sell them to me as having only 14 GB, not 16.