People like me point these things out coz people like you wont mention it in your posts. I guess it shows how genuine you are and also how you try to take advantage of the situation, gaining sympathy from the seller as your other deal that went sour, getting the card for 5K less then the quoted price and then selling it for 1K more 3 weeks later quoting "upgrade" as a reason. Well well.
I'm sure if you would mention the whole context in your post and ask people not to negotiate as you got it for 15K barely 3 weeks back.. genuinely interested members wont. But you seem to have formed a picture about everyone here (like you did about me in the above post).
So I think my first post goes in for general awareness now since you wont mention it.