In 1997 (yes, 21 years ago) Steve Jobs made the case very vividly at the WWDC (developer’s conference) in the most eloquent way possible.
It’s the customer experience, my friend. It’s the customer experience.
(if you want more on the setup to this question, asking Steve Jobs why they were killing certain technologies – which was 45 minutes prior to this question, check out the entire write up and videos at this link)
(Cross-posted @ thinkJar)