It looks like the Visionariums are still glass tanks, and not much of a step up. Why don't you look at www.animalplastics.com or www.boaphileplastics.com. Heck even a plastic tub with less 'head room' will be easier to maintain temps. If you look around on the caging forum and try the search function you'll find all sorts of threads on people and their experiences with each. If you have any questions feel free to ask! I hope that helps a bit.