Maybe the technical requirements at the time were a good excuse but as soon as you demonstrate the market will tolerate that why on earth would you remove it?
To turn around the famous quote: "Amazon's margin is someone else's opportunity". :)
The Amazon flywheel is all about reducing costs to consumers. The moment that stops happening, consumers can get caught by offers elsewhere, and the flywheel can start to go backwards.
The Amazon flywheel is all about reducing costs to consumers. The moment that stops happening, consumers can get caught by offers elsewhere, and the flywheel can start to go backwards.