You want profit, vertically integrate. Don't deal with anyone but the chip designers and manufacturers themselves.
Even then,the RoI is in negative territory for new ASIC miners.
Ummm. No it's not, dumbdumb.
Kindly let us know which ASIC miner gives positive ROI?
That's not what I'm saying. I'm saying you need to vertically integrate to maximize ROI. That means you have chip designers make the chips, then have the reels manufactured, and then the boards manufactured, and then mine with them, and finally sell it as second hand garbage once you milk 80% out of it. Same process bitfury and knc miner and all the other 'ASICs' selling to the dummies out there.
I agree with your concept, but wouldn't this generally require a significant amount of capital? I would think you would need to achieve an economy of scale in order for this to happen.