pay as little as possible per GH and stay focused on the very very very shortest possible ROI term? That's exactly what is killing the industry right now. Loads of people pulling as much money out of the crypto coins without putting anything in. Doesn't take much of a brain to realize such a situation can only head towards the bottom. Short term ROI for mining is dead and people who are still chasing that are filling page after page with whining and yelling scam and ponzi.
Well, I´m not in this for any emotional reasons. It´s just business. If operations can´t compete they should vanish and make room for others more competent. That´s how real markets work. But when you have a marketplace that is based on an insane and bankrupt ideology of decentralization, "self regulation", total lack of any accountability - in other words a paradise for hucksters and criminals - the inevitable result can´t be good. And here we are.