The idea of Wii stockpiling is a little ridiculous, because isn't Nintendo shipping a second batch before Christmas anyway?
On another note, I bet a cookie the reason people snapped up this pre-order so fast is because they were likely convinced by the chain(s) that it was the only way they could get everything offered. More than likely utter BS. Not that I'm any less a rube - I've been suckered into accepting their word as proof before without any proof to the contrary before (see my little outburst in the Halo 3 Legendary thread). But not this time.
Truth be told, Wii is looking good around tax return time, but this holiday I'm all about the DS, PS2 and GBA goodies.