Found a HISS at Target. It was at a checkout aisle endcap. It is not, however, a GI Joe endcap. It's all the exclusives. Lots of Star Wars figs on top, Joe vehicles in the middle (just a single HISS and AWE, no more), and deluxe All-spark repaint TFs on the bottom. (I kinda like the all-spark Brawl, might pick him up--I have no Brawl at all----did they fix the shoulders on this one?)
With Wal-Mart now charging nearly 7 bucks for a figure, buying a HISS for 9.99 is a no-brainer.