Personally, I prefer to use gpu.
i'd rather pay for an asic's power bills.
the knc titan supposedly uses a single ~1000w for 250mh. how many video cards, cpu, memory, usb drives, risers, shelves, and HVAC would you need for 250mh?
it's not about how many hash you have, but more about what is the hash of the other miners, compared to your
having 250MH when everyone have also the same amount is pretty pointless