Meetup #15: In the passionate pursuit of great ideas, dazzling presentations, and awesome products, some start-up entrepreneurs overlook how their businesses will make money. There are many business models but they all boil down to answering the question, “What do you do and why will someone pay you for it?” We explored the challenges of choosing a business model for a tech start-up, the notion of early stage business models versus those for mature businesses, and the proven familiar models versus some creative and innovative models.