You should compare this to the price AVALON is currently selling it's four module miner 5.5 BTC for 110 GH/s at 750 W (twice as expensive for less hashrate and around 4 times the power consumption)
No you shouldnt. I guess this is one of the great miner fallacies, comparing mining hardware to each other rather than judging it by itself on its profitability. Its not because miner A is an even worse deal than miner B, that the latter is a good deal.
disclaimer: Ive not done the math, so Im not saying these modules are not a good deal, just that it being better than other worthless deals doesnt make it a good one.
Yes, that what concerns me. Even though the price per gh is very good compared to others. But assuming all goes the way it did, I will not mine back my btcs. If they accepted credit cards/paypal I would jump in as a decent indirect way to buy bitcoin with credit card. Everyone is talking about "better to buy bitcoins", but there seems to be no easy way to do it with credit card without ridiculous surcharges. BTW, if someone wants to sell me BTC at mtgox price via paypal, pm me. So, I am leaning towards not getting these modules.