BizSugar.com › Sales › Good Business Idea or Scam?

In this post from ShoeMoney.com, blogger Jeremy Schoemaker poses the question of whether two enterprises, one he has just encountered at a local fair and the other an idea he had for a Website that would predict the sex of your baby before birth...sort of. I have to admit I have a point of view on this one and have always used the yardstick of whether I believe my product or service adds value, not simply whether it can make money. Of course, it could be argued that both the businesses listed in the blog post do at least add an entertainment value...if the customer is not taking them seriously. There is a kind of carnival quality to this kind of entertainment like the creatures no one really believes are real in a circus side show. Anyway, I'd welcome comments as I'm sure Jeremy would on his blog. What constitutes a good business model and what is a scam?