All right! I'm waiting for my order at cointerra that should delivery in February, at today I'm mining by 500gh/s bitfury.

Seen the long pre-order queque in every mining hardware site I'm asking to myself if it is the time to order next miner? and which one?
I was thinking something greater like buying chips 28nm from cointerra and than make my own miner hardware. Anyone got experience about it? http://cointerra.com/chip-veterans-form-new-startup-will-sell-high-end-bitcoin-miner-14000/

give your answers!