First, Cointerra is MUCH cheaper at about $3/GH/s. That's a factor of more than 3!
HashFast second batch is cheaper too at $8.75/GH/s and they are supposed to deliver in November!
To be fair, you cant just compare hardware cost with a hosted solution. Put that cointerra in a datacenter with electrcity/cooling/monitoring/redudant everything included for a year, and you end up paying a lot more than $3/GH/year too.