I've got a Rev. A, I'm not sure of the production date though. I preordered it two months in advance from MacMall, it was my first new computer. I do think in another 10-15 years it will be a collectors item. I still have the box for mine, but not all of the packing material.

I also think that the Flower Power and Blue Dalmation iMac's might end up as big collectors items someday.