Obviously you are jumping to a fast conclusion. Did I say immediately? I used Nikon as an example. It will take a couple of months for the price to drop. Is Nikon D3s selling under $2,500 now even before the launched of D5?
You must be a owner of 1Dx otherwise why should you worry about price dropping to $3,000?
Anyway, someone is selling a mint condition 1Dx for $4,500 now. I believe that he wanted to clear it fast before the mark 2 hits the stores which will cause the second hand price to drop.