What would be a fair asking price for 9 PCI Hash cards and M board?
1.75 btc
I'd offer 2.25 BTC for that, if I was looking to buy more hardware.
I would say that 1.75-1.90 BTC is quite fair. Assuming a slight overclock of the cards can get 300GH, thats about 60% faster than an antminer that comfortably overclocks to 190GH at 1BTC.
Antminers use more power and are much bulkier, but come with fan and are more plug-and-play