I feel like a little kid every time I get to take the train or BART. Although a part of it is that I only get to take public transportation on special occasions (and usually to visit San Francisco, which is always fun), there are so many other things that make me enjoy it.
Even though when I drive I get to control the temperature and who is with me, I can't read, meet new people, close my eyes for a few seconds (ie. accidentally fall asleep and wake up at the next station), or work. Yesterday I took Caltrain and BART into downtown San Francisco for a job interview, and the hour and a half I spent in each direction was a great break in my day to stop and take a moment to myself. To combat my nerves I was able to meditate and focus on my breathing. I have never felt so at peace or calm before an interview (which isn't to say I still wasn't nervous, but at least my hands weren't shaking and my heart wasn't beating out of my chest).
I'm sure if I was able to use public transportation every day I wouldn't be quite as enamored with it as I am now, but I hope that in the near future I can use it as my main mode of transportation.