I love dogs - have six now but it has been up to 26 before there was a "Soi Dogs" here in Phuket .
However, puppy mills are no way to have dogs.
In addition to the countless inhumane problems, there is a "Humane Society" shelter that murders dogs aftr three days near you.
Save a dog from the pound, and forget puppy mills.
(Ed - thanks John AND don't forget that puppies grow up)