Marco Arment on raywenderlich.com:
It’s easy to look at successful, painstakingly crafted, impeccably designed apps from well-known developers like Panic or Omni and attribute their success to their craftsmanship, design, and delightful details. Far too many developers believe that if they polish an app to a similar level, they’ll be successful, too. And then they pour months or years of effort into an app that, more often than not, never takes off and can’t sustain that level of effort.
I’d love it if developers would stop focusing on “delight” and instead create useful things that have actual value.