We've all gotten used to the fact that today's special editions aren't actually rare. Almost every one you'll ever see has been mass produced to death. Surprisingly enough, that might not be the case with the Dead or Alive 5 Collector's Edition. Its just been listed as officially out of stock.
At least for the Xbox 360 version so far. If you were to go to the American Gamestop website, you would find that the 360 version is currently out of stock. The same thing is true if you were to look on the Canadian EB Games website. Both are completely sold out.
While the PS3 version is still available to preorder, postings on the gamefaqs and DOA World forums have stated that people have been turned away at the door when they tried to make their preorders in their respective stores. There's no word on if this is a nationwide occurrence or if either the Gamestop or EB Games websites will remain out of stock, but if you're considering buying it for the PS3 you should probably make your choice soon.