Argh, we're heading for a world where each of us is renting some massive industrial unit with its own en-suite power station. Saving up every BTC we mine just to buy the next miner that comes out in 6 months time and still only making 1 BTC a day because everyone else is doing the same thing.
Change that to 0.1 BTC per day and it sounds more realistic
I'd laugh if I wasn't crying so much.
Still, Bitcoin Miners as underfloor heating boiler has some appeal - in Winter anyway. I'll worry about what to do in Summer in a few months. Outdoor heated pool?