I don't expect to forget my password anytime soon
Nobody does, yet it happens all the time.
Much better in my opinion is 2-of-3 paper backups: Three pieces of paper hidden three places. You need any two of them to recover the backup, but alone they are useless. I think they are on their way into Armory.
I agree, but that's why I said I'd keep a plaintext backup, as well. Just not in a safety deposit box. There are always going to be tradeoffs, so it's important to have layers of security againsts both theft and loss. 2-of-3 is also my preferred solution, but this might contribute a beneficial layer of security, and it might be quicker to implement into the GUI.