Petco is an interesting store. I've encountered some who simply don't care about anything going on with the animals, the conditions, what they are selling. I have on the other hand found stores with employees who are very open and accepting to improvement, criticism, and improving the store. At one point they where telling me why they don't carry certain animals, such as iguanas, monitors and whatnot, because it isn't responsible practice and such.
Don't be so quick to hate on petco as a whole