Is there a happy medium between a tub and a PVC enclosure? I'd like to set up my son (12 years old) with a decent enclosure for his first ball python. I'd really like to go PVC for humidity and temperature control but I'd want to keep expenses down if I can. I'm tempted to go with a tub and upgrade later but I know he is going to want to decorate the enclosure and observe the snake (when not in a hide) so this probably isn't a great choice. I feel like my only other option is an Exo Terra or a more traditional aquarium/terrarium setup. Is there a category or enclosure type I'm missing?