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If you check in the past, the miners were running the machines when the price was around $200 and the general price of things, especially the hardware and electricity has not increased considerably in the past 5 years and now the price of bitcoin is over $8800, so you can compare that and come to a conclusion. The small mining farms might have a difficult time maintaining everything because of the rise in difficulty but the big farms will always sustain.
Not only the small farms will be affected on this halving, but we can also say the miners will get the half of the reward while the energy cost is the same, this factor will make a lot of miners inefficient, and it will be cheaper to turn them off than pay from your pocket the maintenance cost.