Are there any hidden costs in bitcoin mining?

[ZeroPhobe]

A friend of mine and I are looking into getting a couple of Antminer D3 machines. The numbers we are seeing on the calculators seem too good to be true. The only thing any of them calculate for expenses is the cost of the electricity (about $0.10 / Kwh) and the pool fees of %1 for most pools. Are there any hidden costs in this? What am I missing?
Is anyone here mining with a D3? Are you getting the returns indicated by the calculators?

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[bobo012]

Mining difficulty increases very quick and then your miners produce less, also new asic chips are developed and then old ones become worthless.
Be sure to count on mining difficulty if you want to mine

[Regulater]

A friend of mine and I are looking into getting a couple of Antminer D3 machines. The numbers we are seeing on the calculators seem too good to be true. The only thing any of them calculate for expenses is the cost of the electricity (about $0.10 / Kwh) and the pool fees of %1 for most pools. Are there any hidden costs in this? What am I missing?
Is anyone here mining with a D3? Are you getting the returns indicated by the calculators?

The reason the ROI seems too good to be true is because these large ASIC's havent been received by many yet. The Antminer D3 will not be received for over a month, and this month the Ibelink miners are being received which in the end the difficulty will rise and the ROI will lower. You will probably receive a 3 month to 5 month ROI if you get an early ASIC miner for x11.

[Bones972]

Yep.... Once a month there is a hidden fee delivered inside an envelope labeled "Power Company"   

[devkowow]

Downtime is your biggest hidden cost. Don't expect it to be running smoothly 24/7, never happens.

[ntsdm1]

besides the power company there is transfer fees and withdrawl fees and conversion fees and a fee to pee!

[jezus]

Antminers9 is more profitable then d3.

[§]

Yep.... Once a month there is a hidden fee delivered inside an envelope labeled "Power Company"   

LOL! So true 

[Cosbycoin]

besides the power company there is transfer fees and withdrawl fees and conversion fees and a fee to pee!

Yes, these are the main terms behind mining. The main problem is the high Electricity bill at the end of each month.
If you really have a good miner then you can cover all the Electricity cost in the profit. If you are choosing D3, then you will have some good daily profit .