@Jarne How so? Though I could just be coming across, by your definition, 'depressing' tree monitor habitats, but I've yet to see any tree monitor or small monitor habitat significantly larger than this:
@Moebelle That something is the standard doesn't mean it's not depressing. In Europe there are certainly monitor exhibits that are relatively larger compared to the animal in there. An exhibit this small doesn't provide a choice in hiding spots, basking spots, a temperature gradient, room to move, .... For an animal that's quite dependent on it's environment it's even more important to give a range of options then for let's say a mammal.
Some example of what I would tend to call more decent non-komodo monitor habitats:
