The recent change ETH went through in which it transformed from a POW coin to a POS one also has a lot to do with this, miners which were mining the coin now need to find other coins to mine and until a good amount of them give up it will remain unprofitable to do so, if you are only looking to make some quick money then this is not something I will recommend to you, but if you were willing to operate for a loss and your electricity costs are low you could mine some coins, hold them and then sell them during the next bull run.