[trojangal]

I think it depends also on the college culture. As a member of one honor society's national leadership team, I'll wear my screened t-shirt for casual events we have at conference or when I'm making casual chapter visits. If it's an important event, such as an awards banquet, chapter initiation, etc, I will usually wear my pin or my necklace. At our national conference, for our formal banquet, many members wear their pins as well as their badges from their Greek organizations. We don't have lettered jerseys per se, but chapters will usually make screened shirts to wear for our philanthropy projects, PR, and recognition on campus.

I think that most people ( new graduates) wear the lapel pins for easy recognition, especially when interviewing, especially in thier particular field.