This is just arbitrage, and has very little to do with HFT. In a normal market, scalpers don’t exist because when products are flying off the shelves you either

This is just arbitrage, and has very little to do with HFT. In a normal market, scalpers don’t exist because when products are flying off the shelves you either raise your prices or increase your production. Game console companies are for some reason unwilling to sell their consoles at auction (which would eliminate scalpers) or increase production so an arbitrage opportunity is born