Finance is much smaller (the Pacific Stock Exchange building is now a gym) but what has really suffered is the arts.

San Francisco used to be a bedroom community for Silicon Valley. The big commute was southbound in the morning and northbound in the evening. Now it's a bit more even.

SF got some tech when people flooded in from outside chasing .com $$$. They got off the plane and thought that of course the big city would be where it was. Even then, the hardcore technology was almost all in the valley; a lot of new companies were taking advantage of new technology but not developing much themselves. Took quite a while for that to change at all.