Yeah, if you go and ask customers, there are a lot of things people will say they want -- but only a few they're willing to pay you for. My rule of thumb is tha

Yeah, if you go and ask customers, there are a lot of things people will say they want -- but only a few they're willing to pay you for. My rule of thumb is that if the problem is in the first category, it's a feature of a product. If it's in the second, that is the potential product.