Hi, I got a question about this particular card. The WHY does the XFX8800 GTS 640 MB costs so MUCH $$$$$$$?? Like this one here:- http://www.tigerdirect.com/applicat...tails.asp?EdpNo=3247594&body=MAIN#detailspecs I mean loking at it's Core Clock of 500Mhz it's seems SLOWER then the other cards around like the 8800GT Alpha dog extreme which has a core clock of above 650. And it costs about $100 Less!!!! What makes this XFX 8800 GTS so expensive? what is the benfit of getthing this card? Besides the 640MB? Or is the price difference just because of the memory? Please enlighten me in this. Thank you. Brian.