Photos were taken over the three days I was there, and they appeared to have done some minor display adjustments during that time. Most of the others were taken on the first day. The last photo with Dispensor in it was taken on the third day, and so was the PowerCore Combiners 5-pack photos. As such, there looks to be an extra Jetblade and Ironhide Deluxe on display in place of a Bumblebee. And there was a fourth 5-pack box on the shelf by the third day, which can also be seen as a variance between the photos taken on the different days.
Don't know why Hasbro didn't just have everything out on the first day - maybe it looked too crowded on the shelves at first...

And if I was the sort of person to steal toys (from Hasbro or anyone), I would go for something a little more interesting than a Bumblebee that probably isn't even a new mould.