I, like many of the others, got my Maggie at 8 weeks. It was waay before I knew about Yorkietalk. That being said, she has been healthy. She actually was a mother (at a later date). Because I researched here religously, her puppy was not sold until he was 12 weeks old. The major difference I have noted is that Maggie is VERY attached to me. Doesn't bother me a bit!
Go with your heart. Be very prepared for emergencies. Try to be home as much as possible.