People have wildly different notions about what they consider a reasonable price for something. Before I started making social apps, I was selling import books.

People have wildly different notions about what they consider a reasonable price for something. Before I started making social apps, I was selling import books. I had people often paying $50 or more for something that in Japan might have cost $5. Definitely would have missed that if I had just tried to imagine what I would be willing to pay myself, only way I discovered the "real price" was by auctioning items first.