First timer here, let me see if I got all this math right. I live in NY State so tax is 8%.
I buy 5 copies DB:X2, that's $162 invested. I can trade it back into gamestop for a $55 'profit' so $217. (Essentially $200 GC for $150). I don't know if GS has gas station cards or grocery store cards...
What do you mean? My area has never had any final fantasies, hell even NYC barely has any. I always look out for these sales but my boxes are always empty, I was incredibly lucky to even find GoW 3. But I can bet you each box is filled with like 20 copies of snoopies adventure each.