The profitability of ASICs is going to decrease at a rapid rate once they start shipping to consumers. Additionally, in a few months the market is going to be flooded with cheap ASICs.
From BFL's perspective if they don't release first they're dead in the water. They don't know where their competitors are compared to them but they recognize it's a winner take all situation. The natural thing to do would be to take pre-orders to fund the manufacturing and start realizing profits now. Also, if your competitors are offering pre-orders you should be too.
The evolution was CPU -> GPU -> FPGA -> ASIC. Now that we're at the ASIC stage growth is going to slow considerably. There's no longer order of magnitude gains to be made.
>at the ASIC stage growth is going to slow considerably
Yes, buy these are 110nm v1 designes, it looks like they will be able to squeeze something like 10x per watt by moving to better process and iterating on design. And probably additional 10x in cost by ordering more than current quantities that are in the ballpark of the smallest possible order.
Right now entire network runs at speed equal to all hardware in first two Avalon batches (300 and 600 units). When batch 2 and 3 and BFLs hit in the future, everything else is going to be wiped out. But then it will be wiped out again by the next iteration.
Difficulty adjusts week-to-week. Being the only guy with an ASIC is like a license to print money. Being the 10,000th person with an ASIC will be like trying to mine with a netbook today.
Supply will always be constant however how it's divided changes -- people who previously enjoyed lack of competition are now having their feet held close to the fire.
I see it as a futures contract on the value of the BTC. Selling a mining ASIC locks in profit for the seller, betting that this will exceed the time-value generated from the rig itself. Buying a rig locks in a loss, betting that it will pay for itself. We can't be certain whether the BTC will be at US$1,000 or US$1 a year from now. You could make a case for either side, that's why the contract exists.
Which, by the way, doesn't mean they are betting against BTC. They just elected to take sure profit up front, over less certain profit of potentially greater value long-term.
Why would anyone wants to sell the goose who lays golden eggs while gold cost more than the goose?
They'll pile up cash from "preorders", mine bitcoins and when time is right - will dump outdated devices to customers.