My experience in building out more traditional web sites is that organic is harder work but almost always the best way to go.

1) People appreciate HUMAN interaction and personal interest.
2) The rules of reciprocity are more highly activated when you have person to person contact.

The idea of a quick fix is attractive, particularly if you are trying to hit the ground running in a fast-track kind of way. But if your concept has value and if you stick with it and ADD value to the internet - people - and search engines *will* take notice. I've seen it time and time again.