Ya once you get to a certain point a car is nice but I also don't have the money to pay for parking. Most of my classes are right in the heart of downtown where there is no parking unless I want to pay $20+ a day for a garage.
Yea, I have a few relatives and a few more colleagues that work/live in the Bay Area and none of them own a vehicle. I think it is rated the highest/best pubilc transportation in the country.