DavidM, I think you really just zeroed in on the truth. Interesting and more natural caging is not only better for the snake, but also sustains the interest of the keeper. It is more fun for those us who are fortunate enough to keep these great animals. If we are going to keep them in boxes, they should be interesting boxes, right? (I think the chondro folks have figured this out with their naturalistic caging). We are limited to what we can do with just a box, but one thing we can do is give them better substrate. It is like adding that third dimension to a cage. It greatly increases the available surface area in that box.