Our main means of public transport is probably bus and train. I do enjoy these travels, as long as I have a seat and its not too cramped. The main advantage is that it slows down our thought process, letting us literally see thing that we would have never noticed.
Travel speed might not be proportional to thinking speed, but you also meet people. I recently happened to meet an old friend after 17 years and through him I got the contact details of another, who was even more of a close friend. It gave immense joy and I did save some cash with that travel.