I couldn't believe my eyes when I saw Cointerra's prices :
http://mining.cointerra.com/shop/2 TH/s Plan : $7,999–$11,999
Thats $4 per GH, equal to 0.0084 BTC.
CEX.io's GH contract is "only" 0.0038 BTC.
Bitmain's Ant S3 sells at 0.0013 BTC per GH, and even this is so expensive that you'll likely never break even (or ROI as so many like to say).
I guess it's not a crime to sell apples at $100 per pound, but to all mining n00b's I say ... you better get another hobby. If you want to get involved with Bitcoin, very good, buy some coins at an exchange and/or spend your efforts on making apps/services related to BTC