Having a large cage is a pain in the butt to clean, I've only kept the balls in the 2x2x1 boaphiles because that's what I had off hand, but I'm definitely considering going to a rack system because of the reasons you stated. I think my girlfriend will be happy to hear that naturally they like smaller spaces, I hope she goes for it. I actually needed to move on of the baby balls into a tub last night and her baby is the bumblebee we have and when I mentioned I need to move one of them and she says "you aren't downsizing my baby!!" haha so maybe my snakes will move into a rack system and hers can keep the 2x2's