I don't buy that because:
- It's really Panasonic (Matsushita) doing most of the hardware assembly, not Nintendo.
- The IBM PowerPC core is really tiny and very easy to manufacture, since it's basically an old PPC G3 further -from the Gamecube- shrunk down to 90nm and then overclocked. You might say "yeah, but it does have some customized features just for Nintendo", but then i would say that those are probably very minor and don't really influence much the overall IPC of the chip.
- ATI's GPU is, again, a slightly enhanced version of the original Gamecube design.
- Memory and optical drive tech are not really of any concern whatsoever, since they're both long established and cheap to make market standards (plus the Wii doesn't even natively play DVD-Video, therefore avoiding all the MPEG 2 royalty fees to the DVD-Forum).
- The Wiimote motion sensing tech can't be that hard to make, since it's easy to find them selling separately in most stores.
In my opinion, these "shortages" are nothing but carefully planned business tactics.
If they were to allow a colossal "flooding" of hardware now, then the momentarily sales would really spike, yes.
But then, after a few months, the hype and word-of-mouth about something you couldn't yet try out but knew from the media that it's fun would be lost, and they would find themselves on a "slow" sales period just when the holiday season is warming up and the competition is seeding the big guns and blockbuster software titles.
Also, since they actually make a profit from the hardware directly, then it would make sense to control and adjust somewhat the offer in relation to demand.
As Enzo Ferrari (i think
) said, if you find that there are 500 potential buyers for a new super car, then manufacture only 499 of them and watch the value of the product skyrocket.