DG is basically hit/miss... they usually renovate existing buildings to make their stores so their shelving isn't structured the same in any given store, and thus they don't work off plan-o-grams exactly the same. A lot of "make it work" type stuff, and employees/managers doing the best they can with what they have.
I've found that about 50% of the DG's I've hit had the figures. I have one left I can hit. I hit the ones that DIDN'T have them multiple times and never saw one stock them so I'm thinking not all stores are even getting them in. I mean some of these stores are literally only 10 minutes from each other for me, if that even, and nothing at one store multiple times I've visited it but the other one had a full set... and no restocks.
If Joe fans are lucky, Family Dollar or Big Lots will get them, as both are much more likely to carry the same stock at all stores, and restock them when they sell out. DG is really on the lower end of the scale, regarding stores like this.