The 12,300 number corresponded with the Japanese PS1's December 3rd launch. Sony is auctioning off the first console, which is 00001 out of 12300, for charity. All proceeds will go to Save the Children Japan, with Sony matching the amount raised by the console. Good on Sony for doing that.
Bidding began today on Yahoo! Auctions and ends on January 25. As of posting, bids are at 1.4 million yen (US$11,883). Expect the amount to only increase by this Sunday, and don't be surprised if this Anniversary PS4 surpasses amounts previous ones racked up.
Though, you'll be sad to know that the console will not be shipped overseas. So, if you plan on winning this, you'll need a Japanese shipping address. That, and lots of money.
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