At this price level of 0.000025 mining is not so profitable

Waiting for price recover...
0.000025 what? BTC? Always specify units!
And you are right that it is not terribly profitable to mine right now, but you left out the other half of the reason: the difficulty to find each coin is too high relative to the price (in BTC/$/whatever).
Still, my CPUs don't have anything better to do besides surf the web so I point 2 of them at DERO despite the unattractive difficulty vs. price.