I don't see how long this is going to last ...
SFO is
growing at the expense of the other airports and (as some of the comments have suggested), having BART go directly to the terminal is a major factor.
SJC is, well let's face it, in the boondocks for anybody to make the trek over from the city (787 notwithstanding). SFO is a much better airport.
IMO, of course
