Shares of Turtle Beach (NASDAQ: HEAR) traded at less than $2 at the beginning of the year but have since skyrocketed to over $20. That rally was sparked by surging demand for the company's wireless gaming headsets, which were buoyed by the rise of popular "battle royale" games like Fortnite and PUBG.A ten-bagger return for a hardware company is impressive, but it also attracted a lot of naysayers who claim that the company's short-term boom will eventually end in a brutal bust.