Clearly, GoPro Inc (NASDAQ:GPRO) manufactures and markets a leading electronic video camera which is all the rage. They turned in a big quarter and nobody begrudges them the success of achieving a big score in the consumer electronics marketplace. But long term success in the consumer electronic industry is highly elusive to maintain, as evidenced by this chart (by a Seeking Alpha writer). The reality is that, analyzed historically, nearly all tech hardware device companies have a brutally difficult time maintaining consistently high margins. The following graph illustrates the point decisively: