I just farm powerslave madness for gold. Decent gold.
Have you noticed how the hardest skull quest gives the worst rewards? (Other than the 10K gold). I haven't got anything but crappy talismans in months from the last skull quest. Shouldn't the hardest be the best reward, and not the easiest give the best?
Souls from the easiest skulls.... which is what everyone wants.
Its pretty damn stupid if you ask me.