How much room and money do they need? Haha
Also aren’t tegus dangerous or have some chemical on their skin or something? Or is that Komodo dragons?
Are iguanas vicious or something??
Tegus need at least an 8ft long enclosure. But they will mainly use that for sleeping and basking. To give them enough space to exercise and explore I think people usually end up letting them free range in their house at least part of the time. And they are huge so you are going to be buying lots of quality produce and meat each week to feed them.
They are safe to handle though and generally well mannered if properly socialized.
And I just really do not care for iguanas personally. I feel like a lot of them are jerks.