I think you're trying to cut off your nose to spite your face.  You're looking at this in the shortest of possible of terms and failing to look at the larger picture.   Mining, if done right, will always be profitable.  Attempting to take too much out too quickly and not fully accounting for the rapid pace of depreciation is what screws things.  Look at what's going on with gigamining or any of the others, asic combined with the reward halving is flipping the mining field in unknown directions.  Stockpiling a little coin right now is the most prudent thing.  If it turns out things are a bust, there's nothing preventing a payment of those in the future.  If price of coins goes up some, it makes buying hardware easier and less coins are diverted towards the keeping up and more coins are paid out.  If price goes down, then perhaps asic doesn't make sense and that means I can afford to buy more from "the day job", thereby decreasing the payback period.