ethereum mining difficulty is increasing nowadays
every single month will be 20-40% decrease in profit and this will lower our roi and will make it impossible to get price of our equipment back
bitcoin is the same of it and will never get lower in diffculty,is there any altcoin that can be mined with lower diffculty and getting higher earnning if so which one will be?
Ether mining will be profitable till late 2018 sience they delayed casper release till late 2018 (switching from POW to POS). In new release metropolis witch will be released in next 2 months in 2 phases they will frezze time bomb(delay ice age)average block time will be set to 15secs but they will reduce reward from 5 to 3 ethers per block. Overall miners will suffer 19% profit loss when they apply changes if current eth value stays at 300$. this is good news cos casper was announced for release this year late 2017 and they delayed it

My calculations are that you can roi in 6-7months easily if value of ether stays the same but every predicion is showing that ether will hit 500$ till end of 2017. so if you start to mine now and hold your ether you could roi in 4-5months.
You just need to believe in ether
