Most of us who use tubs use them in a rack setup. I have used free standing tubs for a few snakes here and there, but I prefer them in a rack. They hold humidity great, they are easy to clean because they are lightweight, and the snakes seem to eat better in them. Plus, ball pythons like to hide.. so keeping them in a display enclosure is kind of useless in my opinion, simply because you will never really see the snake! lol