Some species do wonderful in glass, some do not. I am finally down to one snake, one pet actually and can finally justify switching to PVC. I would have done this years ago if the availability of PVC was as plentiful as it is today. Not that long ago getting a PVC or even fiberglass enclosure was a large ordeal upwards of $600+ just for the cage. Finally the cost is actually cheaper total than the headache and cost of glass. I think the days of glass enclosures are numbered but at least we have affordable options instead of being pretty much relegated to one medium.