It’s about master craftsmanship – being an expert at your craft. Being the best at something. One of the things I always loved the most about Apple was that everyone was trying as hard as they could to be the best at what they do, and pushing each other. We were never afraid to say, “This isn’t good enough.” Even down to the very last moment.
One example: the first iPhone originally had a plastic front face, which was replaced by a glass front face, last minute.