The cartoon is great. The title is dumb. They're not illustrating with DRM doesn't work; they're illustrating why terrible implementations of DRM don't work.
Speaking personally, I'm what you'd call a steady, low-volume consumer of iTunes content. I maybe bought four or five TV episodes from iTunes last year (stuff I wanted specifically to watch in HD but missed when it aired), and I probably rented one movie every six or eight weeks. Not a lot, just a bit here and there.
All of that stuff is loaded down with DRM, but I never even noticed. I hit the "buy" button on my Mac or my Apple TV, then I watch. In the case of rentals, the files are automatically deleted after I'm done with them. I don't even need to clean up.
For that specific model, DRM works perfectly. Getting the shows and movies I wanted was faster, easier and more reliable than piracy, by a very wide margin.
It's simply not true that DRM doesn't work. It's more fair to say that it's apparently a very tricky thing to implement well. Most implementations seem to royally stink.
