maybe, i've tried going to the dollar tree and a walmart on the same day last week out of sheer curiosity, which that and fuggs's thread inspired this one, and campbell's soup was 93 cents at walmart and $1 at dollar tree.
maybe you might be able to answer better but i've never seen how it's less expensive than a walmart for most stuff. like the soup cans there i can regularly find for half the price elsewhere.
i'm going to be honest, i've never heard of this guy or the source he's using. i did a cursory search and i found some other articles on it but from most of what i see it sounds anecdotal. that being said, i use facebook and zuckerberg is a robot so