If our collection grows any more, we'll be switching to the Rubbermaid/Sterlite option. We bought our glass tanks before we knew any better.
If you get as addicted to collecting snakes as many people do, you can switch over to the rubbermaid stuff for the boids, and then get some other species for the glass tanks that require less humidity. My cape gopher does very well in his glass tank...has perfect sheds with no effort to maintain any specific humidity level. (It's fairly dry, but I don't have a hydrogometer(?) to measure the exact humidity.) Many other gophers and bullsnakes also make great pets and do well in a dry environment.