You're right indeed. 21's mining chip does give a negative ROI, even in areas where electricity is very cheap. Why would anyone buy a $400 mining chip that cos

You're right indeed. 21's mining chip does give a negative ROI, even in areas where electricity is very cheap. Why would anyone buy a $400 mining chip that costs more in electricity than it produces in bitcoins, when they can just buy $400 worth of bitcoins? Beats me...