As the difficulty rises it becomes unlikly to get a return on your investment even with GPU at this point.
Epi
People said that to me in october as BFL was to release next month. I lol now with my two fully paid 7950 + free heating I got this winter!
Yep october was a concerning time. The concern was over increases supposed to be caused by BFL now there are real asic devices in the wild and more coming. Its is easy to plug in cost and possible hash rate to determine ROI. If the network hash rate continues to rise GPU will not be profitable. Heck if it keeps rising my FPGA farm wont be making many coins.....
Epi