How much did the Black Arrow unit cost?
I think we paid ~$6,000.
With your previous answer in mind, do you think it makes sense at all to start to pull back from preorders and shift more toward a strategy of buying equipment that is immediately available (even though it perhaps doesn't look as good as the preorder gear)?
It seems we have consistently been burned to a greater or lesser extent with pre-orders, and have not participated in some of the better ready-to-ship deals (thinking of AntMiner S1's from December that are now +ROI, with later S1's looking very likely to go +ROI soon).
Not really. I don't think we've been burned by preorders at all. We had some unfortunate timing with our loans, but that's it. I think we have some of the best equipment available on the way to us very soon and the preorder we're requesting a refund for is going to be an instant +>200% ROI. AntMiners are a small step above BFL singles and Monarchs are a giant leap. As always, I will keep my eye on the future.
Any word on whether the litecoin developers plan to change the hashing algorithm on litecoin to be asic resistant?
No, and I think they would be foolish to do so. That's sort of like spitting in the face of your biggest supporters. However, if they did make that decision, there would be no shortage of miners willing to sell their LTC and move onto a scrypt friendly coin to mine with their ASIC equipment.
EDIT: After reading the Devs official response on the LTC situation, I don't think they will EVER change the algorithm. This is because their network is already controlled by ASICs. The most likely result of them changing the algorithm would be ASIC miners continuing the LTC chain while the LTC Devs beg people to support their alternative chain. Mass confusion would cause them to have to rename their new LTC chain and their supporting vendors would be told how much less secure the new chain is compared to the ASIC protected old chain. In short, I am as concerned with LTC changing their algorithm as I am with BTC doing the same. I'm not.