I'm kinda in the same boat. I have BPs in a rack, and I had my carpet in an exoterra. I'd just rather a PVC cage for him. He's about 2 years old and as of right now, he perches. I'm just told as they age, they get less arboreal and will no longer really make use of the space I provide for them. That's why I'm so torn haha. I want him to be happy and have the room he needs for sure.