There is always one person who struggles with telling a good story. They might meander in a hundred different directions before the story is through, and in the end you have absolutely no idea what they were talking about. The best stories are ones that are not only interesting, but stick to one train of thought. You should keep this mind if you are working on a market research program.
Go with single thought ideas like “Student Spending.” Market research for student spending is a good topic for any research project. It's relevant to people in college. Plus, market research companies can also use this data for almost any other consumer good projects they do. It can be done on a national or regional level.