Some time ago  those Terras was so hot man :

http://i.imgur.com/oHEf3f6.png

And now they are useless I wish other use to exist for it ... I gonna start mining again if the price is jump hundred times at least with this difficulty. Without  have  heart attack after see my el. Bill which never going to happen. Better send it to some gipsy village in third country where they never pay for electricity 
just joke joke.....you guys are very quiet ? Knife is right. Wake wake.... And heads up