I agree with you Pleistocene891 and I was in the process of writing something similar! The San Diego Zoo would be far less attractive if it wasn't for all their great primate and bird exhibits. They also have an amazing reptile and amphibian collection and some of them are even in large outdoor exhibits. In their new Wildlife Explorers Basecamp (which I have not seen) they even have a lot of invertebrate exhibits!
What's so interesting about this is that most AZA zoos seem very reluctant to invest much in monkeys, birds, reptiles, amphibians, and invertebrates because they don't think that they'll be popular enough to visitors.
Warning, hot take incoming...
The San Diego Zoo should focus on primates, small mammals, birds, reptiles, and other small animals and leave the larger hoofstock, pachyderm, and large carnivore exhibits, with a select few exceptions, to their San Diego Zoo Safari Park facility.
Actually, that may not be such a hot take because it seems to be what they're doing and having success with...