I was under the impression S1 miners could mine any SHA256 coin? If that is the case you could still profit from it mining alt coins in a multi-pool?
It's not so much the mining aspect with the Ant S1s, it's the power consumption, cooling the units, and selecting the right power supply.
Since most owners own multiple Ants, at 360 W per Ant, it adds up.
We'll see alot of pencil modding and undervolting to keep costs and heat down this summer