I always looked at the commute cost as a balance out, TBH. The distractions on the bus made study on the bus difficult and I wouldn't work on there because I was loathe to be one of the people edging out another with a laptop on a full bus. granted, other places may have better transport than the Seattle area (ours is pretty notorious), but most is pretty crowded and not suited for work or leisure. I count those commute hours as personal cost hours, to me and the environment. It was an hour in and an hour out (on a really good day), and I'm like 20 miles from the city center.