Competitive FPS players would never pick this unit or similar up with an intent to play competitively on it.

Competitive FPS playing is kinda like NASCAR. The hardware and configuration of hardware is critical if you actually want to win.

Well I guess I don't necessarily mean professional competitive players, just people who play a versus game and take it seriously. If you could plug it in and get 120FPS, I could see some of these people consider getting one, especially if it overlaps with their interest in non-competitive games.