When done correctly, I think zoos are great.
They help people fall in love with animals and make a personal connection with many animals that are going extinct. If we want to save the animals from going extinct, or get more people involved in protecting what is left of their natural habitats, then we need to start by getting people to care about these animals. And zoos are a great way for people to see and learn about these animals. This is what the crocodile hunter's motto was, and I think it is great.