I bought today the s4 and about one month i buy again 2 machines. I dont know what's the problem. The miners what i have from them work perfect and after next week i make something like 2.5 btc a month. so not bad with my 5 a 6 th/s
No problem feel free and buy the 4 I was going to get, I prefer to actually ROI not just mine btc at any cost.
Thank you man. Some people are crazy i think or they hate miners? i don't know. Bitcoin is created for a brighter world but a lot of people here are nuts and i wondering if they really like Bitcoin!
