While there were whispers of the 8800GS in the background, it was never really one of those cards that got much attention. Everyone was too busy concentrating on the 8800GT and new 8800GTS 512MB card to really pay much attention to it.
By the time talk of the 8800 models had begun to die down, everyone was on to talking about the 9600GT and the newly released 9800 GX2 / 9800 GTX models. It seems that a lot of companies also chose to miss the model completely; it does make sense with the large amount of models out there, but ASUS thought they would take the opportunity to release the model.
ASUS are only one of two companies in Australia who have an 8800GS on the market here. The only other company who chose to take up the card and release it locally was XFX. The card seems to be a bit of a weird model and we're not too sure where it will sit. The card should sit behind a 8800GT, but the 9600GT also sits just behind it. It's possible that both cards perform quite similar and companies chose to uptake the 9 series model over the ageing 8800 series.