It's yet another gamble, and it's a tricky one. You could spend $10 mining $20 worth of bitcoin, but what will that $20 worth of coin be worth in a year's time? What's a loss today could be a profit tomorrow, it's kind of a 3D gamble pitching power draw versus coins mined versus time.

I'm running mine 24/7 because I can afford to throw the money at it (119 watts 24/7 is probably on a par with smoking one cigarette a day, and I don't smoke).

I feel sorry for the guys who have put four or five figures into Sovu's grasping claws, and I doubt he's going to crawl out of his cave for any BTC conference for fear of getting a pasting or worse.