Thanks for the response.

I was thinking it was in the 500 to 1000 area. I was curious, as I recently picked one up via ebay at a decent price only to have the seller immediately re-list the same chip for $5 less. Now, it is the seller's prerogative to sell at whatever price they want and i paid what I considered a fair price but my joy of the purchase was immediately diminished a slight bit. Oh well, I was just wondering how many were floating around and you confirmed my thinking.