I can't tell you about the cages, I got the CB 70 rack about a year and a half ago and it's holding up just fine. The bottom slot is starting to stick a little, but all of my racks are like that no matter who the manufacturer is.
Check them out on the BOI at www.faunaclassifieds.com. There is info there. Also take a look at www.repti-racks.com. They will sell you a cage that size made of 1/2" pvc for $182.99 shipped.
"Men have forgotten this truth," said the fox. "But you must not forget it. You become responsible, forever, for what you have tamed."
~The Little Prince; Antoine de Saint Exupery
I like them too! I'll probably have to go to a show and take a good hard look. It's hard to choose something without actually seeing it in person.
Thanks!