Really? Did you get your puppy for $350? That's a great price for a healthy yorkie pup. I'm glad you got lucky with your pup!
Another thing that tipped me off was the location of the "breeders." I live in Seattle and one advertised that they were from Seattle...but their address said "Seattle, Washington DC" Their info was in some serious broken english and I really doubt they are located in the United States! A lot of nerve!