Wow, this thread is surely give me a fresh air. I still got hesitate of which should I pick. And I think I got the answer already. But wait a sec, which one
you use now ? Just wonder it
there's no more profitable cloud miningyou use now ? Just wonder it
if you buy some contracts / GHS, you will not make ROI
bitcoin difficulty rise like crazy
even direct mining your own hardware (almost) not profitable anymore