Costco has everything from raw foods to processed foods. You want to cook and eat healthy? They have it. You just want to microwave something and be done with it? They have it.
If you get junk food from Costco, that's because you bought junk food.
If you get junk food from Costco, that's because you bought junk food.
But isn't the argument was that Costco carries good stuff?
The "junk" in junk food isn't talking about the quality (good/bad) thereof.