What astonishes me is how many little guys out there (buying USB sticks, graphic cards etc) think there is still a profit to be turned from their dinky little devices.
Ignorance is bliss I suppose, just costly bliss

I haven't done the math super recently, but at BTC's current price, if your HW is paid for already, and your electricity costs are low enough GPU mining *might* still be marginally profitable. But not as profitable as altcoin mining with GPUs.
-helixone