Dear Steem!
Today I decided to jump on Bitcoin mining contract to Genesis Mining.
It costs me 667$ (orig. 698 - used ref. code) to get 5 TH/s and the ROI is 190 days.
As long Bitcoin is profitable, the contract will be never end. Just remember that Bitcoin is the only contract that you've to pay maintenance fee. It's 0.00028 dollar per GH/s.
My case - 5000 GH/s --> Maintenance fee: 5000 GH/s x 0.00028 dollar = 1.4$ each day.
Ethereum mining contract is still on track. The payouts are very close to the one from Coinwarz.
Get 3% discounts @ genesis-mining.com : ozTOHD
Best Regards,
MrCrypyo