I thought this might be an interesting question.
Many of the more introspective people I know drink tea. And many of the more extroverted people I know drink coffee. I drink both (coffee in the morning, tea at night, so I'm not sure what that makes me). I know in rec.food.drink.coffee, there's many more posts than here....I understand generalizations are sometimes unfair, but I wonder if there's ever been a study of personality types and what preferences, tea versus coffee, they have. Anyone have any thoughts?