Antminer S7 daily maintenance fee will be half of Genesis Mining or $0.00058/GHS/day. Cost per GH/s will be roughly equal. If you want to pre-order Antminer S7 to hash right now the cost will be $0.40/GHS but you will have to buy hash equal to a full miner or 4860 GHS. Still the best deal around and publicly traded about Oct 10. I see no way Genesis Mining will be able to compete with Hashnest with the significantly lower maintenance fees of S7. And unlike Genesis Mining you can sell your hashing power any time you like.