Hi,

I am new to mining and looking for suggestions and appreciate your help. Sorry for being a noob here.

I'm planning to build 8 GPU mining rigs each with 8x Zotac GTX 1070 mini. The electricity cost here is $0.12.

Motherboard: BIOSTAR TB250-BTC PRO 12 PCI
GPU:   8x ZOTAC 1070 mini 8GB DDR5
PSU:   ANTEC 1300 PLATINUM rating
HDD: SSD LITON 64GB
RAM: DDR4 Ram
CPU:   Intel Pentium G4400 Skylake Dual-Core
OS: Windows 10

Each rig is costing me around 5000 USD to setup.

While I was researching, I found about ETH going POS and some scary discussions about not getting enough profit and ROI. Is the future really this scary?
It is a big investment and I would really appreciate some suggestions here. Should I go for it or should I go for Antminer S9 instead of GPU mining?

Thank you very much.