Ahhhh so sick of companies featuring San Fran. The whole point is that it has better coverage Nation-wide. Pick literally anywhere else in the country!
I count 6 images in the link. 3 are SF, one is SJC, one is New York, and one is (presumably) Abilene.
Doesn't that make comparisons harder? Granted companies may game SF results, but looking at on companies downtown Houston map and anothers Sioux Falls isn't so helpful.