I may be being real stupid here (what else is new in ZackWorld?), but is this the same product you guys are talking about - at two TOTALLY different prices at these two sites?
They certainly look the same and the pack design is identical. Of course, the cheaper one is out of stock and not available. It's never the other way round, is it?
If you look at www.wonderAardvark.com you might find even cheaper versions of the same thing but without the props, requiring the use of a bit of brain power.
(a short sharp slap to anyone who just clicks through that url without thinking about it first)