man im not goin that high :( you said if you can make the credits high enough that you make your money back without selling which i did the math above so my max is 8500 points if you can meet that then you have a bidder :D
OK so i did some math: Gamestop has it for 19.99 rounded to 20 that's 7,200 for and i'm saying around 3 bucks for shipping (i ship alot on here) which if 5 dollars is 1500 credits every 300 credits is 1 dollar so 900 credits is equal to 3 dollars so all together thats 8100 credits for free shipping :D which if that's so then i'm bidding!!!
The only way i would do free shipping is if i got the equivalent of the cost of shipping in addition to the equivalent of what i would get if I sold it