While this is true and nammy should not have butted in as you offered first, it will make all the difference if nammy can sell them for less than you, it is all about being competitive in the AC economy.
I should know, I have been making money on Animal Crossing since 2002-2003.
It's fine. I apologize for replying harshly, I just get tired of this sort of thing happening. But I do understand why you posted.
However, I did not "jack up" the pricing. Foreign DLC typically sells for around 50k each, depending on the rarity/desirability of the item. If I didn't make a profit, there wouldn't be any point in the trade...