O'Reilly says he sometimes wonders what would have happened if he had raised venture capital and given his company a chance to get really big. But he sounds more amused by this question than truly troubled by it. "Money is like gasoline during a road trip," he says. "You don't want to run out of gas on your trip, but you're not doing a tour of gas stations. You have to pay attention to money, but it shouldn't be about the money."