It's bad enough for sales of old C2Ds with the release of the e8400, when they release the e8200 at its MSRP of ~$180 it will be the end of the e6xxx, because even a $20 savings for something like an e6550 wouldn't be worth it, and an equally-priced e6750 really wouldn't. It would even cut into q6600 sales. So I have no doubt Intel is holding back. They're probably sitting in a warehouse somewhere in Malaysia right now, tens of thousands of them.
Thanks for screwing us over, Intel.