you can buy some miners do some mining and then sell the miners, it should be pretty profitable, the miners right now aren't losing so much their value, because there is no other better miners coming(or maybe i'm wrong here, i'm not following mining so much lately), you can hope for reselling your at a good rate and not losing much
Miners sometimes lose in the electricity bill
not all miner lose, If price BTC down some people stop mining and diff will be down too, that perfect time to mine and you can get a lot of bitcoin, hold your bitcoin, after Btc up you can sell it