I'd keep checking GameStop and EB Games; you just know some spoiled little brat somewhere is going to say, "But mommy, I wanted the Pink one!" or "Mommy, I wanted the PSP!" or something and the parents will give it to GameStop who will put it out as a used product.
I didn't realize they were sold out again; I haven't had to look for one in awhile
When I met Miyamoto, the other writer I was with had a red DS, to which Miyamoto said, "Ooh, special edition!" Not sure why I bring it up, but the way he said it was amusing.
The red & black, being a special edition, will be hard to find later on. It also looks really pretty. I'd get one, but I've got a while color scheme going on- white DS, white Wii, white MacBook, white iPod.