yea but in one month, it will have made you back 90k from your initial 30k investment, even if you only get half that with the increase in difficulty and power costs and what not, that's still 15k in your pocket easy after only a month
Once (if) ASICs start shipping in a significant quantity, difficulty's going to increase a LOT more than just 100% within a month. You also have to keep in mind that you basically can't order now and expect a profit, given all the ASIC manufacturers have long queues of people waiting for shipment who placed orders earlier. Those who placed very early orders have a good shot at a big profit margin IF the company they ordered from is first out the gates in delivering product and the product's up to specs. If you're backlogged order #154 from a company which doesn't ship until a month after some other company starts shipping out significant quantities, you're probably screwed. What I think's most fascinating about all this, is that ASICs will depreciate something like 80-90% of value (based on potential revenue) within the first few months of ownership. Once the first ASICs are out, while there's no incentive to stop them from operating due to negligible electricity costs, there's also practically no incentive to buy new ones. It seems like mining will be made up of <500 people for a long time once the ASICs are pushed out. -- Now, keep in mind that assumes the ASICs can't be repurposed, but I don't believe I've heard of anyone talking about what to do with ASICs once their revenue generation bottoms out.
It's concerning how little difficulty is increasing. Unless the manufacturers are testing with unproductive software, their units should have caused a dramatic spike in difficulty. The company should then claim responsibility and *poof* they immediately and dramatically increase their credibility. IIRC, there is one company which decided to label their first batch of ASIC units something like a "test run," then mined on them while creating a new "production run" to ship out to customers, but I don't recall hearing about any network hash rate spike as a result of it. Maybe they were stealthy and started operating ASICs when the reward halved, so miners dropping out would mask ASIC units turning on?
(I've largely kept out of ASIC discussion, so might have a few glaring inaccuracies I'd appreciate being corrected on)