I can't understand the attraction of photographing at the zoo. To me, the fact that the animals are already caught, and in a cage, takes away from the luster of it. If they were in the wild, I would be very interested to take pictures, but not at a zoo. I mean, you can go look at a zoo any time, so I don't get any sense of capturing a special moment. I guess that's just me. Do any others share such a view (and I'm not knocking the posters that do like it, just that I can't get excited about it personally).
Why does every picture have to be a "special moment?"
Not that I completely disagree, but your post is really, really elitist. Not everybody can afford to take a month off from work and fly to Africa just because they want to snap a pic of a lion. Besides, I'd rather not see wild places like Africa and Siberia turn into Disneyland for every wannabe wildlife photographer.