I am so sorry you experienced this sadness today. The vast majority of pet stores that sell puppies and kittens are the pits. I guess the birds and bunnies and rats don't fare much better.
The only way that these pet shops will stop selling puppies and kittens is if people stop buying from them. At $2,295 (make payments, we finance) the profit margin must be incredible when they are buying from puppy millers and rock bottom dollar prices. UUUGGGGHHHHH