Quote from: Transisto on July 11, 2011, 02:45:05 PM

Quote from: Salain on July 11, 2011, 02:18:40 PM

Power consumption and 2 year linear depreciation on cards, $8.92 / BTC

what % will be worth your card in 2 years ? Zero ?

Yes, that is the assumption. Actually I do a quick depreciation to %65, then linear depreciate to 0%.

I do consider 2 years to be conservative, but not without a realistic basis. If a card craps out at month 16, my depreciation cost estimate would instantly become 33% too low. Also I'm unsure how far factors such as ASIC development and a flood of GPUs into the market following a confidence crash could lower GPU prices.