Actually I think savannah monitors and green iguanas are closely matched, both are very large lizards with powerfull jaws, claws and tails, iguanas get larger but the average sav is more bulky then igs and also likes to roam more, so a bigger cage with alot of floor space is needed. Also I know of many people that dont mind going to the supermarket to get veggys or even growing them in pots, but not all people like having a freezer full of mice and dont forget also that savs do better and live longer on a more invertebrade oriented diet with the ocasional mice. And savs poo smells worse!thewaterboy;4166494; said:i would stay away from the green iguana. It is a vegetarian which means it will need to eat basically every day and it will crap every day....which isn't that big of deal when it is small but a 6 footer will stink up the entire room. To keep it properly nourished you will end up making salads and spending a decent amount of money going to the supermarket to buy collard green, dandelion greens, etc....which rot in the fridge after a week and a half. They also need a massive cage when full grown. Few people are actually aware of the commitment it takes to rear a healthy green iguana to adulthood.
I would definitely go with a carnivorous lizard. They don't need to eat everyday...so less poop, the frozen rodents can be bought in bulk and stored for a very long time in the freezer and if you're going with the savannah monitor, which i think is a good choice, it won't require the cage size that the green iguana will eventually require.