I have purchased most of mine from Sandfire Dragon Ranch, Dragon's Den, Sticky Feet Exotics and recently, Anthony Caponetto. In every instance in dealing with the aforementioned I have received healthy and satisfactory individuals. Good breeders have their reputations to protect, and will treat you fairly. It is an advantage to deal face-to-face with breeders as at shows, but all but one of mine was purchased online (largely through Kingsnake Classifieds), and I have never yet suffered a disappointment. Hope this helps.
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Terri
4:8:14 crested geckos: Popcorn, Goldfish, Harley, Bear, Big Red, Olive, Smudge, Blackie, Belle, Brilliant, Tina, Brick, Lefty & Tiger, Avis & Subtle, Chocolate & Vanilla, Toni(y), Kermit, Sharp & Sassy, Zipper & Ladder, Spots & Stripes.