They get all their money from whitey.
The Prudential Center is home of the New Jersey Devils. Hockey of course is almost a completely white sport (To the point of thinking it's funny when you actually see a black NHL player.).
The city must get a lot from sales tax from the visitors to Downtown Newark including those that go to the Prudential Center. Also, there is an important train station near the Prudential Center along the Northeast Corridor. Also, Newark Liberty International Airport is near by.
I guess it's a mini version of D-Troit (UMM HMM). The Downtown area of Detroit is okay and whites from the suburbs keep it okay and it sustains the city. If the whole city was the innercity ghetto, it would all go ape.