Focusing on a great user experience includes focusing on the packaging. The experience should be totally seamless. For an upscale/luxury consumer goods company (like Apple), shoddy packaging is expensive - far more expensive than the luxury packaging whose costs the author decries. If I want a mediocre experience, I'll go to HP or Asus or something. A continuously delightful user experience buys customer loyalty. The thoughtfulness of good packaging engenders trust.
If I see bad packaging, I trust the the attention to detail less for the company that made the product. If they don't care about the box, they won't care about the buttons, or the software, or the color correctness, or any of the thousands of other details that make a consumer product. Then I stop shopping for quality, and start shopping for a price point and feature list.
When Apple argues that they have the best products in the world, they can point right to their packaging - they have the best packaging in the world. Best in every way.
Is this good logic for a startup? Of course not! No startup has Apple's resources. A startup has to focus on ONE thing. But Apple has to focus on ALL things.