See, I had not really thought about that.
My biggest issue with rack/tub, and why I did not go for them, is that all the ones I ever see are paper bottomed with a water bowl and single hide inside. I just felt taking a BP that has lived it's whole life in a bigger cage with a heat lamp spot and branch/fake foliage and space and putting it inside a box would be a little stressful for it...But, maybe they would not care either way, they are "just snakes" lol.