I'm certainly not an expert, but I've been watching this chip on Ebay since it was released back in February. Early on, the chip was selling for anywhere from $50 to $75 (to the best of my recollection). Here lately as the supply has dwindled down, it's been going for $90 & above. So IMHO, no it's not worth $75 but, there are plenty of people out there who are willing to pay that kind of money to get the chip into their collection.
Bill Thompson
R-4581