I don't quite understand why people are still buying mining hardware. Currently it will take about a minimum of 4 months to pay off one card.
I understand the ROI for those professional miners, but for the casual guy like myself? I'll get a 6990 as soon as I have enough bit coins to afford one, since my *primary* desire is for gaming, but the mining to "pay for it" is just a bonus, basically giving me a "free" gaming machine (once all my parts are added up).
If the gravy train some day dies, then I'll have my gaming machine still