Honestly, I think that's just the normal scenario for niche apps. You have a product that people react to in one of two ways: "why would I ever need that?" or "holy crap, that's exactly what I need." If the number of people in group two is small enough, you have an enormous obstacle. It's not enough to just solve a problem. You have to solve a problem that enough people have.

Anyway, if I think of a better response/solution than "it is what it is", I will be sure to let you know. Good luck in the mean time.