I looked it up, Oakland is bringing up the rear in average fan counts for the season at 11,000.
LA and SD are 1 (almost 50K) and 2, SF is 10th.
I guess even if you have to step over a junkie who just shit on the sidewalk, people would still rather watch the Giants play than the A's.
LA sweeps up all the homeless around the stadium just before the season starts. They still have a skosh of self-preservation left.