As part of Mike Bloomberg's neat little war against cab drivers who don't pick up certain people or drive to certain places—although they're required to by law!—the city did a little study. Surprise: cabbies hate outer boroughs.
The [college] students [posing as fares for the study] hailing cabs in Manhattan 260 times asked to be taken to one of the other boroughs. They were rejected half the time.
By comparison, city inspectors using the same script had a problem in only 21 of 118 instances this week.
To be fair, the outer boroughs are only home to 6.5 million people, which is only 80% of the city's population. You can't make everyone happy.