I am housing in plastic now only because I built a rack to hold them all in one convenient location. I was tired of aquariums all over my room. I had 11 of them and that takes up a lot of space so I switched to tubs. Don't get me wrong, I like the tubs but i didn't have any problems with my glass tanks either. When I was using glass I simply wrapped black on black foam core around 3 sides of the tank. Not only did it make the snake feel secure, it also helped hold in the heat so it didn't escape the sides of the glass aquarium making a CHE or heat bulb unnecessary. I only used an UTH and had no problems with my temps. As far as humidity goes, I laid a piece of plexiglass across the top that covered all but 2 inches and set the water bowl over the UTH and it would get so humid that I would have to take it off for a few days at a time. I never needed to mist. Even the male I got recently had a perfect shed for me not long ago and he has scars from previous bad sheds. Glass aquariums can be used and you can have a beautiful viv with just a minimal effort. It worked well for me. I like the convenience of the rack though so I will stick with that.