This is one of the most misunderstood questions I’ve ever come across regarding the Internet. Most start-ups believe “If you build it, they will come.”
We had an inquiry a few years back from a woman that wanted to sell her hand made peanut butter cups via an online store. That’s it, just peanut butter cups, like the ones Reese’s sells. She had no previous experience running a candy store or any store for that matter. She was also pumped up because she was a member of a number of young professional entrepreneurs clubs, so she assumed the marketing feedback from them was enough. Although, based on her insistence, I could have taken her money and built the site, I knew this was a bad idea and told her as much. Her feelings where hurt, and she eventually built her site; it was gone within 6 months.