This really is the $100 million question.

I personally find it frustrating to have the skills to build a high quality, robust, elegant application, that meets a real need, but to not have the ability to market that to a critical mass.

Rather than spending my time reading about the latest tech news & coding techniques, I feel as though I should spend my time studying up and learning about marketing from first principles. It's by far the biggest obstacle to the success and lifestyle that most people frequenting this site have.