Why don't you ask your shareholders first via a motion on glbse and present some math here on the thread?
You bring up a good point.
I doubt it's profitable if prices rise more in the coming months. I agree it's a sort of insurance against falling prices, but too expensive in my mind.
Don't doubt that it would be profitable if prices rise. A price rise would only make the addition more profitable. A price drop would make it more valuable and essential to the company.
Can you compare adding the FPGA miner to adding another 5970 for different bitcoin price levels (say $2, $3, $5, $10)?
It's not so much about direct comparisons (although I have done the math). I think we all know that 5970s are more profitable at $10/BTC. However, an FPGA miner would be profitable at a $0.25/BTC. Since we already have 2-5970s, I think the added ability to maintain profitability at a $0.25/BTC rate is the bigger advantage.