Do not hold anything, time to hold was before eth 1000 usd, sell anything you trolls mine and then thank me later when everything crashes to hehell because that is where eth and all cryptcoins will be going very soon, let the moon moon trolls hold, be smart, remember that eth stayed priced around at 100 usd for around 2 years and profit was negative most of the those 2 years.
I hear it from the time then ETH was $600. Several my friends sold ETH between $600 and $800. I sold rather big part of my ETH at $1300. May be you are right, but may be it can raise up to $4000 before $100. We cant say really, just trying to guess.
. That being said, historically the miners that did the best are the ones that kept mining and paid out of pocket for expenses while the profitability was down. 
