The point is that one that ended is very nice. Yes, yours is probably better, but until a graded one is sold all we can do is speculate and that gives a great figure to base guesses off of. Grading it doesn't give an automatic 2x multiplier or anything, depends who is looking and who is buying at the time. I'd imagine 1.5-2k.

i struggled to get 1200 for my mint copy and its not sold still.

Why not put it on ebay?
 

it was on ebay for a couple months, but leavin games on ebay forever isnt my style