Heya semp,
I am just curious here... why do you think his XFX card's true value is really only $100.00 ?
.have you read this in an article somewhere recently or is this just your opinion/view ?

TC
well I got it from a good source that a used card should be valued around 40% of what the lowest price it sold for. for example I once sold my mobo with an e8400 cpu and 4 gigs of ram. I sold it for 190 shipped. I had just paid almost 500 bucks a year before. the value of anything is not what you think it is, but what the seller is willing to pay. I had offered it for 250 plus shipping. a couple of guys offered me close to it but those deals fell thru. then the last deal I was offered 150 shipped. I counter offered for 190 shipped and it was accepted. I could probably have gotten more if I had waited. on the other hand I could have gotten zero for it. since I would rather get 190 than have it sit in my closet and it be worth nothing, i accepted the offer. I think i got a good deal and so did the buyer as he is an ah player and last I hear he is making good use of it.
the point is you can ask for anything you want, but the value of it is more what the seller is wiling to pay and you are willing to accept. if the card is worth more to you sitting in your closet then it's your call. if you are willing to accept less and use that money towards a better card then it's up to you to decide if it if a good deal.
I have 2 evga 465 I paid 280 for the first one and 120 shipped for the second one. on places like amazon they are worth from 150 to 280 dollars. the cards are no longer made. so in my opinion they are worth around 80 bucks each if I wanted to buy them as I can find better cards for 200 bucks that are brand new and faster than what I have.
the card that he is selling is no longer made. how much he's willing to sell it for is up to him. but to me I would rather get a decent price that it be worth nothing sitting in my closet. that is just my opinion.
semp