I have $6,500 What Should i Do?

[xLeftyx]

Andrespetmonkey said:

IIIIITHE1IIIII said:

 

WTF. My brain is dead. I can't figure out why this won't work.

The buyer who, bear in mind had put in a $20 in the box, in turn bought the box for another $30 which he now spent a total of $50 just to get a box of $40 whereas the seller who only put in $20 now has $30.