It's definitely profitable and all depends on your power cost, that and Eth is a coin people are speculating on.
ETH is definitely one of the coins that we are all speculating on. In case a bull run occurs during the second half of 2019 or 2020, then ETH will be one of the coins that will appreciate the most. But you need to make a choice between mining at a loss (especially of the returns are not enough to cover the electricity costs) and purchasing ETH form the exchanges at lower cost. And I would say that the latter is an option that I would chose.
Don't make that choice. I would chose neither, I would rather invest in another project that has much greater potential than Ethereum. In a future bull run the tide would lift all ships, not just ETH.