Are people really paying this much for a miner? That's a shit load of money and if BFL ever delivers you'll be shit out of luck cause they'll pump out 200-300 units a day. Apparently Avalon is in it for the money, I thought they were here to protect the network. Hahaha, a little money on their lips and they got the greed bug.
Questions like these are usually raised by people who do not understand the economics of mining. Short answer: see above, pricing has to be done in BTC, due to opportunity cost.
Long answer: What you want is to value the miner in terms of it's ability to perform a ROI in a feasible amount of time. At the break even point, the mining generated as much BTC as you spent when you acquired the equipment. Given that 63 GH/s at 75 BTC currently roughly has a ROI of 1 month puts things into perspective. However, you have to account for the expansion of the network. So a 10x increase of the ROI time is certainly possible. The truth will be somewhere in between - probably around 3 months when they are delivered on time. Expect to make a profit after the first year, and retire the equipment after the second year, unless you have access to cheap power or the purchasing power of BTC soars.
