I've seen a couple guys using their ASIC's as a space heater, but i guess that's about it
God Lord that's one expensive heater, I can tell you this!
No, at the moment the only usage is for Bitcoin mining or some other alts mining that share Bitcoin's algorithm, which in the end almost always turns out to be a waste of money since these alts are 99% all of the scams!
Mining business is pretty ruthless when you think about it more closely! No place for mistakes!
True... But if you use them for mining, and as a space heater at the same time, you can heat your space for free (since reasonable HW will produce enough
BTC to cover the electricity costs).
I'm actually on the lookout for a dirtcheap S1-S5 for exactly this reason (it's winter, and we heat part of our house electrically anyways, so why wouldn't i use a dirtcheap secondhand antminer and make almost enough coins to cover my electric bill)