Apple product that lived its entire life without once being in stock

Great observation from Benjamin Mayo:

A simple, but profound observation. To a business like Apple’s, inventory is the enemy. Inventory is sunk cost with the possibility of zero revenue in return. Yes, the AirPods did spend brief moments in stock, but this is as close to zero moments on the shelf as Apple products get.

Do the AirPods represent the future of Apple’s inventory management? Interesting.