has btc/usd per g/h ever been price at fair market value or has it always been this off from the beginning. i understand u can sell the shares anytime so i expect it to be slightly higher,but something about this seems way off. is it more worth it for me to buy a rig/usb to mine with and then sell it on ebay?
From my own charts and using my own metrics the price is about fair at the moment.
However, the price trend is always down and you will never mine enough Bitcoins to cover that loss. Still, it doesn't seem to stop the many idiot juveniles that use the site. Think Satoshi dice but with loaded dice and you don't know which number is biased.
Even since the days of GPU mining the price of hardware per hash has fallen constantly. That is why the value of GHash on CEX is always trending downwards.
Whatever you buy now will fall in price. What price a 1GHash GPU based rig now?
From now I would say just about all (and most definitely all cloud based) mining is a loss making proposition. The only way you will profit from mining with your own rig is from price appreciation of Bitcoin. You will never profit from cloud based mining.