As i posted in another thread - assuming that each titan does 250mhs @ 10k and a Gridseed (minimum) 350khs minimum - each Gridseed would have to drop to $14-16 to match that type of khs/cost ratio. I highly doubt they can be sold at that amount for profit.
Glad i stuck to my GPUs. When Gridseeds are worthless, my GPUs won't be.
I unfortunately sold off 1/3 of my mining rigs for Gridseeds. If I can get a good 6 months out of them before these KnC Titans hit they will pay for themselves by electricity savings. I knew it was a risk but my power costs were starting to kill me.