My worry is that the investment may not be worth it by the time KNC ships. I rather spend the same amount NOW on a miner that is 5 times slower
Five times slower would by 3MH/s. If you can get 3MH/s for $600, I'd like to know how.
You could buy three
Zeusminer Blizzards if you can wait a month for delivery. That would give you 3.6 mH/sec for $600. Myself, I would prefer to put the $600 into a Titan share.
