It just has to be marketable and profitable. You need to know specifically who you will be marketing it to.4 This group should have four factors: 1. It should be narrowly focused so that you can market to them. 2. It should have the desire for the service or product you provide. 3. Its members should have an ability to pay. 4. Ideally, you should be a member of the target group yourself. If any two of these four factors are missing, it’s probably not a good idea.
