Health care forms win. I've always found it a bit saddening that despite having a pretty good grasp on health care and tax policy, I'm rather less adept at actually navigating my health insurance or the tax code. The macro is not the micro, it turns out. And so, given my embarrassment, I fully agree that "[t]hesheer reduction in the level of mental energy -- to say nothing of actual time, economic resources, colored pieces of paper, etc. -- expended on this kind of thing seems like a good enough reason to move to a simple national health insurance scheme."
Remember, it's not only on your end of things. The amount of paperwork your doctors handle, the billing specialists they need to employ, the time they spend screaming at insurance representatives, and those bizarre identification labels they're constantly printing out because private insurance can't seem to move to electronic records would all vanish as well. And while those elements don't do much to annoy you, they cost you money. In our grand socialist utopia, those expenses would disappear.
Viva le revolution!