Right now? With this ridiculously low btc price? I think nothing is profitable anymore. Just my bitter words.
329,20$ / 279,73€ - wow, -100€ in two weeks... I thought hashrate would drop, which would help me with my three S1's, but it keeps growing atm.
If I have luck, I can get all three miners into our office where me and my boss don't need to pay electricity (we have a small office in anoher company's building to store some computer parts). As they have very large industry machines, three miners would not even be noticed.
At 0,25€ per kWh at my home ich would pay min. 1/3 of my BTC ontop... I don't get why S1's are still at ~107€ per device in germany as they are not profitable other than free electricity.
I just searched for some scrypt miners but I just "invested" in three S1's for a total of 337€ which is more profitable under my circumstances as scrypt would.
IMO the whole asic thing has made bitcoin a lot less interesting... You invest, diff increases, hardware is too slow and finaly you have a device which just generates heat... GPUs could have been sold or used for gaming.
Currently I am thinking about what old miners could do for us. Encrypt data? Cracking Pws? No.