If you pay $100 extra once in your life for the gold iPhone, then Apple has probably cannibalized more of your retirement fund than HFT.
Ballpark esitmate: drop $20k/year into retirement (1 lot of SPY/year) x 1 penny/share being robbed from you x 50 year working career, you've lost $50 to the evil HFTs.
Ballpark esitmate: drop $20k/year into retirement (1 lot of SPY/year) x 1 penny/share being robbed from you x 50 year working career, you've lost $50 to the evil HFTs.