@Yassa: thanks for posting a link to that article, as it illustrates that having giant pandas in a zoo isn't quite as lucrative as many visitors think. I stated earlier on this thread that pandas in western zoos is a "no-lose situation", but perhaps I should reword my phrasing to include the notion of baby pandas. San Diego and Washington, D.C. are swamped with visitors in no small part due to their baby pandas, while the article plainly states that zoos in Memphis and Atlanta are struggling in anticipation of a newborn or two.
At the same time, massive corporations such as Home Depot, Fujifilm and UPS have donated millions to help fund giant panda exhibits, which would have been unlikely with any single other species of animal. On top of that there is the prestige factor, as those 4 U.S. zoos with pandas consistently advertise the fact that they are the only ones out of 219 AZA zoos that actually have the world's most celebrated mammal. Also, if these zoos are finding pandas to be a financial strain, then that statement is offset by the fact that both San Diego and Washington, D.C. have recently spent millions building/renovating brand new exhibits for their star performers.
Yet another bonus to obtaining giant pandas is the infrastructure all around the zoo. As I mentioned earlier, the Adelaide Zoo in South Australia has a long list of amenities that will be built to improve the overall zoo, not just the panda exhibit. Even though giant pandas in zoos can at time be draining resources from other animals, in the long run they are still wonderful additions to collections. There are many zoo fans that claim that giant pandas aren't worth obtaining, but if their local zoo imported them in then they'd be among the very first visitors lining up to see the black-and-white beauties!