Mining $TAO isn’t just about profitability, if you believe in TAO then you should now that you will be profitable laters if you decide to hold your mined tokens instead of selling at loss. If you’re mining $TAO just because it’s profitable and you can sell whenever you want without taking losses then you shouldn’t be mining it from the first place at all. 

Bitcoin succeeded because Minera endured times of hardship when cost of mining were higher than actual price because they believe it was temporary and unrealized losses.