I think the packaging is very weird for these. They come in a case of twelve, on two trays or six, in tubes that can be hung from pegs as well.
I've seen these both stacked on a shelf in their trays and hung on pegs.
Hanging them on pegs seems to not work very well because stores only have a peg devoted to these, and the cylindrical design doesn't allow for more than four figures on a peg at a time. If they were flat carded figures you could fit a lot more. Granted stores could do multiple pegs closer together, but I've yet to see that.
These don't seem to naturally fit on a shelf either since shelf space seems to be reserved for larger items, so I can see how Wal-Mart shoved these in a strange spot.
I wonder if these were originally designed for some other retail location (Walgreens?) where they could sit in a checkout aisle or something. Or maybe they gave this design opportunity to an intern who did something visually different, but impractical from a sales channel perspective.