Yes - but. However wonderfully the bull frog is presented, it is never going to match the lion, or the bear, or the monkey, for its sheer visceral impact. At ZSL, one of the undoubted gems is the invertebrate house (despite its absurd title, "Bugs"). Lots of imagination, nicely done. The reptile house is even better - great collection, presented with panache, with some wonderful interpretation. But for practical reasons (it takes two people looking at a vivarium for it to feel crowded, whereas those microscopes in the old round house in Paris - I think they're gone now - could only hold one person at a time), and human nature reasons (99% of visitors are going to be more intrigued by the meerkats than by the Frigate island beetles), a zoo that only has such esoteric things is not going to flourish. It's possibly an unfair comparison, given its geographical isolation, but how many visitors does Jersey Zoo receive each year? And how does this compare to places like, say, Colchester, Beauval and Amneville, at which the "box office" animals are presented to visitors? Pilsen Zoo - mentioned above, and certainly one of the very best zoos in Europe, has its lions, tigers, giraffes and penguins, alongside its brilliant rodents, small carnivores and birds.
I've been ruminating on the comments, above, suggesting a cut-price alternative to Tiger Territory, a sort of Howletts-style functional cage rather than a 'fancy' design, as proposed. If I may, I'd draw a comparison with football. There are some players who are very good indeed, and will star at smaller clubs, but for some reason just don't have what it takes to really be a 'big club' player. For example, Charlie Adam was the star of the Blackpool team for two years, and a great performer, but is he really a Liverpool player? Kevin Davies has done it for many years for Bolton, but he would never have been right for a top-four team. And so on. Likewise, what is perfect for Howletts, or Colchester, or wherever, simply won't do at London. Look at the bear thing they did a few years back. It was, in many ways, quite fine - but with its cheap finish and home-made look it just didn't sit happily in a capital city zoo of London's standing (that's not to see that Wallaby Mountain is any improvement). And the cost, and whether it should be better spent in Indonesia - it's a false dichotomy, as the ever-sage reduakari points out above. It's akin to the parents' injunction to a child to eat up his dinner because there are people starving in Africa - a finished plate of vegetables will not prevent the hungry from starving on the Sahel, any more than a zoo not building an exhibit will free up money to be spent on in situ projects.
Finally, on the much-criticised Gorilla Kingdom, may I ask whether those who know their gorilas, of whom there are many on this thread, object to its fundamental design, or simply to the way that the gorillas have been managed within it? And to those who suggest that this exhibit would be better devoted to a more obscure primate species - again, as with the tigers, is this really going to work? Of course we would be more excited by, say, bearded sakis, or white uakaris, but gorillas are going to win every time in the eyes of the public - and one could hardly say that gorillas are not wonderful creatures that do not merit the attention they receive.