I have nine cresteds. They are from all over the place. Some were ordered from Anthony Caponetto, one was from a guy in California who was featured in Reptiles magazine a couple months back (the girl in my avatar), a couple from Petco, and one male from a reptile show that I attended in New York.
The guy from the reptile show in New York had never seen CGD. He's a big boy, raised on baby food. He didn't know what an insect was, and didn't want to touch the CGD. Most of the cresteds this woman was selling along with him were missing their tails, had kinks in their tails, or generally looked blah. I purchased him, and switched him over cold turkey to CGD, and now he eats it like a champ. ...he still won't touch crickets, although he will eat the occasional worm
Good luck with yours!