Pet shops are breeders way of continuing there business. If you seen the conditions of how these dogs are kept you would be mortified to know what you were contributing to. I know you want a cute puppy but there as so many qualified pups at a shelter or even over the web. These homeless animals spend countless amount of time waiting for someone like you to come along and who doesn't love a great rescue story. Rather then just spending amount of dollars at a pet shop. Get a pet that is on death row and give them a forever home. These guys are just as worthy of love. Be a hero.
Check this out great info and adopt don't shop
http://iheartdogs.com/10-signs-that-puppy-is-from-a-puppy-mill/