I read a post by MDO on Trainorders where he talked about the TOFC traffic to San Francisco. He made an excellent point about how it made more sense to unload the trailers in Oakland and drive them across the Bay Bridge to customers in the city than to send them around the bay to be unloaded at Bayshore. When I read that I couldn't believe how obvious that is. As railfans we want to see more train traffic but the railroad has to operate the most efficient way possible. Having Oakland as a central unloading point makes total sense.