Comments on the other post reminded me of how patching can be done well: City of Heroes, yet again leading the industry from five years ago. Patches pre-load, with this being an automatic option when you log off in the week before a major patch. This does not help much if you are returning to see the new stuff, but current players have it pre-loaded. (Again, yay for Steam for doing that on upcoming releases.) That frees up bandwidth for those returning players.
Note two different parts: automatically updating without more clicks, and it does this as an option when you log off. It does not keep you from playing right now, which is what we all want. I believe the PlayNC updater will do something similar to what I like with Steam’s automatic updates, but I do not keep it running because I rarely have multiple NCSoft games active at once.