Agreed, building something is just the first step.

One of the marketing struggles I've had is just getting people to care. I did have a bit of an "If you build it, they will come" attitude because I had confidence in the quality of the work...but even that seems to be irrelevant if you can't get people interested.

As an introvert by nature (extrovert by necessity), I wonder what I'm missing that others seems to grasp innately, because the consequences are fatal for an entrepreneur if you can't convince others to at least try the thing you're offering.