Man made $2500 in a day buying Monopoly for Millennials at Walmart and selling them online

Monopoly for Millennials, an edition of the game noted for its surprisingly contemptuous mockery of younger generations, was perfectly-designed to go viral. It's $55 at Amazon, but WalMart had it for just $20 (sold out, I'm afraid). The Bearded Picker went from store to store buying every box and selling them online. All he had to do was iterate the 'available' count on his third-party seller listing at Amazon, raking in $2500 for a single (admittedly long and arduous) day's work.
Other sellers report that Amazon prevents them selling these as 'New'. One explanation is that they're may be setting the price too high, tipping the algorithm off that they're gouging customers. But The Bearded Picker also points out that he's an approved seller of the brand at Amazon:

Certain brands require approval before you can sell them. It helps AZ fight counterfeits or the brand has requested it by entering the brand registry.
Amazon-approved arbitrage!