There's usually a stage of progression when you start keeping ball pythons.
1. Aquarium stage: you curse those rack people. Insisting they are abusing their snakes with such a tiny enclosure.
2. The tub stage: your collection is growing and you've experienced a few bad sheds from keeping in an aquarium. Problems include keeping the lid secure. Bungee cord is used...
3. The rack stage: you're big time addicted and the convenience of space is a large issue. You find that your BPs do very well in this setup and eventually you need a whole room for your racks.
Welcome to stage 3!