I have an APR puppymill Yorkie. From what I have now read up on all those other registeries, you could register a Hermit Crab mix if you wanted. LOL. I did get a really good story from the puppymiller though. That AKC had become to expensive and to hard to work with. Thus, many breeders are going to other registeries. Yeah right. My next baby will be AKC as they seem the most reputable and strict, which is what I like to hear. Expensive? Well, maybe. But so was my puppymill baby to the tune of $1,500. YIKES