The San Francisco Opera at AT&T Park occurred on September 24, 2010. Obviously, the event information is dated. It has been over for 5 weeks now, but this sign remains up at this Parnassus bus stop.
Why have “they” not changed the sign? A number of thoughts went through my mind. First, they will not change the sign until there is a new customer. Its more efficient. Second, they forgot about it, after all there are signs all over the city. Third, even though the event information was dated, the impression of the San Francisco Opera and AT&T Park still has value. If this is so, how much longer will they leave this up? and how do they measure the value of impressions left with high income UCSF health care workers?