Man that was a cliff hanger that's the most Drama we have had on here. I feel for you! If I were a Millionaire I would probably have at least 20 Yorkies, even though my 2 are a handful! They are all soooo sweet and lovable it's very hard to return a Baby in need, but there really was a point to be made in returning her. A high price does not mean Quality. I personally hate Pet Stores for selling dogs the way they do especially in that condition! Well now that you have been through the worse you can appreciate a Healthy Baby Boy! You want a Baby that is active and Happy not one in any pain and misery. You did the right thing not just financially but for the Principle.
When got my first one I paid $3,000.00 for my male Artie, he had an ear infection, kennel cough and worms, plus he was Traumatized for Life regarding crates from the Flight/shipping from Florida to Boston. Endless Vet. appointments, medications, tests. I was so worried and he was always sleeping because he didn't feel good.
I was so stressed out about his well being. But since I purchased him from a Breeder on the Internet (he was a Birthday Present) I'm very impatient I wanted him and I received him within 2 days.
Luckily he is as strong as an Ox now and nursing him back to health made our bond even stronger in fact it's as if we can speak to each other. Enough mushy stuff the moral of my story is I learned from my experience that was before I found Yorkie Talk, to do your research since then I just purchased a female Abigail she is only 8 weeks old and she is wild in comparison, I find that the males are closer to the women and the females are closer to the men. In my case any way, this time I only paid $1,000.00 and she fit my strict criteria as well as far as particular characteristics. She actually was a bargain compared to my male and I think she even has more Champions in her Bloodline than him. I now know what the difference is......if I had to choose between the two a sick or healthy one? Of course the healthy one is a lot easier! Fortunately his illness was not too serious and easy to cure. I love them both but my Artie is more special to me because I know what he went through!
Congratulations on your new Yorkie!
I'm sure you will all be very happy together, and you Families will love him too! As far as a name? You will find one based on his personality? I'm glad and relieved to hear a happy ending.

Take care and Good Luck I'm sure if you need any help with anything you will let us know?