[larrys]

"But coming to SF and floundering around"

Depends on the alternatives though. Much better to be "floundering around" and amongst a group of people with similar goals then trying to do the same in Topeka Kansas (arbitrary nothing against that city.) To start you could end up meeting people who do something that will give you opportunity. Environments like this are rich in contacts as well that you can make. (Not a reason to drop out of something that you are on a path to but if you can't find that path it certainly will give you a leg up.)