Since you have to pay to read the linked article here's one that's free. I guess it's the same thing.
My favorite is 99-Cents Only stores. Dollar General will have to be really good to beat 99-Cents Only stores.
FYI, for WSJ articles: copy and paste the headline into Google, and the first result is usually your article. Click the result and you’re taken to the full article on the WSJ page.
They want the search traffic but not any other traffic unless you’re paying for it, I guess.