They are in the 500-600 range right now, but everyone is saying that there will be 2 million Wii's on launch day. With that many going out, a lot of people will get one, and a lot of people will just go and get one to sell on Ebay. So the supply on Ebay will be high, and the demand may be low since many people would already have one.
What do you think the prices will be around on launch day? I'm really unsure.