[freerobby]

Agreed, but two important notes:

1) Automation doesn't have to be complete automation. I can use Chef tools like knife-ssh to run a single command on every one of our boxes in near-real time. This might not be automated to the extent that the OP is referring but it's 99.8% more efficient than logging into 500 boxes to do it (or 200,000 in Facebook's case). If you can get 99.8% with ease, it may not be worth pre-automating for that final 0.2%.

2) Knowing what is worth automating comes from experience. If I have to do something nasty once, it might be a total waste of time to automate it. There are lots of one-off things I type at a command prompt that are quicker to run than to automate. I think being so dogmatic about automation as to say you should never run things at a command line requires you to spend peple's time non-optimally.