I picked up one of those cheap leather high-back chairs awhile ago, and it was quite comfy for a long time. Definitely worth the $90-$100 it cost on sale. But it's about time for new one. Not much spring left in the cushion.
My only complain about the chair is the back is not quite high enough for me to lean my head against and kick back and fall asleep. But that's probably just as well. Spend enough time sitting here already, don't need to start sleeping here.