Haha, good one.

But srsly tho, I though I come check in here, to get a better idea, but it really seems like this a shocker to most of us

Hey Dude,

take my advise - you are too late, to get into the game now.

 

The speed will decrease on every new DAG, but by the you won't be able to mine with 4gig ETH will be POS already.

The consumption for this card is pretty good. I have tested both Rx 470 and Rx 480 and got 120W for 470 and 160W for 480 card. I have used 8GB cards both. The hashrate was good for both of them.
Power supply I would recommend Segotep gp1350g, you can use this for 6 cards without problems.

A good rig:
Motherboard: Asus Prime Z270-A
Ram: Ripjaws 8Gb 2133MHz
Processor: Intel Pentium G4400
SSD 120GB
Risers: Version 7 (6 pin to sata. Safer than the molex)
Gpu: MSI RX 580 Gaming X 8Gb
Power Supply: Segotep gp1350g

http://bitcoincharts.com/  --> 2456335.762 Thash/s
and
https://www.hobbymining.com/bitmain-antminer-s9/ --> Very efficient at ~0.1 Joule per GH/s
and
https://en.wikipedia.org/wiki/Electricity_pricing --> a broad range of prices (so let's use $0.10 as an average)

2456335.762 THash/s is 2456335762 GHash/s
2456335762 X 0.1 J/GHash/s X 24hrs X $0.10 = $589520.58288 per day which produces 1800 BTC

dividing it out gives us $327.51 in electricity costs alone

now https://shop.bitmain.com/productDetail.htm?pid=0002016052907243375530DcJIoK0654 we can get some specs and pricing for miners.

Let's say an Antminer S9 is capable of 14 THash/s and assume the network is using only these highly efficient miners.  In this case, the network is comprised of 175452.55 S9s
each S9 retails for ~2100 USD and lets assume it will last for 1 year before becoming obsolete.  The network hardware costs for the year are 368450364.3 and per day would be 1009453.05 so per coin... $560.81 and lets add electricity to that = 888.32 per coin.

Wow.  $888.32 per coin!  I haven't included real estate, maintenance, cooling and internet connections/power supplies.  Obviously there would be some economies of scale for the manufacturer of the mining devices so they wouldn't be paying retail cost for the miners but that's a ballpark figure.

 $888.32

 It makes the current price of Bitcoin 836.12 seem like a bargain!