It seems logical at first - Eyetech can only make so many boards, since overproduction would be suicide. Those who didn't buy coupons and want an A1/OS4 are a bit like people who turn up at an exclusive hotel and want a room the same night.
But I agree with Loki1. Despite being cloaked by some careful wording, this statement is still basically a threat. I don't like being pushed into purchases, not matter what the reason. Why should people be penalised for exercising free will? Maybe that's just the price of being part of such a small user base - but even so, I question everything.
Although cynical, it seemed to work though - maybe 200 vouchers were sold since that statement - about 25% of the full sale.
I hope this doesn't set a precedent.