At a superficial glance, taxi drivers always appear to be in a hurry and are so utterly talkative at the same time. Not very different in Buenos Aires. These folks are just constantly buzzing from one place to another and when you hop in, they always give you their opinion whether you want it or not. It's kind of fun because you can meet so many different types of people and learn about others' perspectives.
Have you ever thought about getting a job as a cabbie?