I think one of the main problems with that site is that a lot of the species names don't match the picture of the animal. Also, on that page you're viewing every species they've ever had, not just the ones they currently have or carry regularly.
Doesn't stop me either. They do appear on the market. They just probably won't be CB. I got some Schistometopum gregorii last year from Tanzania. Unfortunately, the few terrestrial species from Africa that do make it into the US are getting harder to find. Species from Mexico, Central, and South America are almost impossible to find do to the restrictions in those countries. There are exporters out there for Asian species, but for some reason, they don't make it here very often.