CB or CBB? CB means captive breed but not neccessarily in the united states or country it is being sold in, CBB means captive bred and born in the country of origin the animal is advertised in. There is quite a difference when thinking about worms, parasites, and other diseases. WC animals are much cheaper because they don't always acclimate or breed in captivity not to mention the vet bills you have to dish out to get them in good health, which is why some lie about their birth status but offer those lower prices. If you aren't sure risking the health of your collection probably is not worth the $10 you are saving. Ask the breeder a ton of question and ask for references from others sold to. Then contact those references to be sure. I know as a breeder if someone is interested in my geckos the first thing I do is give them a minimum of 3 references with names and contact numbers.