Petco could not careless their business does not revolve around the snake or even reptile industry and would continue to do just fine if it disappeared, also keep in mind that they make sizable donations to the HSUS each year.
And it's amazing that people still believe the issue in Florida is due to "idiot" releasing their pets.
There are no retics in the everglades there are burmese pythons and certainly not "tens or hundred of thousands" that what they hope people will believe.
For anyone wanting some good read based on REAL science there is a ton to be found here on this subject http://vpi.com/publications