Shipping is what concerns me. Cadillac Kennel is shipping these puppies (sometimes for free) and selling puppies at 8-9 weeks of age, when a Yorkie should really still be with their Mommy and littermates until 12 weeks of age. I can't imagine putting a little Yorkie puppy into the cargo space of an airplane and flying them. I'm just a little leery is all. There are alot of puppies (and breeding stock) on that website, and it is in Missouri (the puppymill capital). I don't know anything about the Kennel personally, but you may want to look into it further before you commit to buying one of their puppies. I'm not saying they're a puppymill, just be careful. Maybe someone can go there to check out the facility for you. It could save you alot of $ (vet bills) and heartbreak in the future.
Just my humble opinion.