This is probably ridiculously old-school thinking, but wouldn't it be nice if major companies had a back-up plan for how to run things on paper when their computers go down? (You know, the way they would have forty years ago.)
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@DavidSalo this is why I always shake my head when I cold call a company about Managed Services, and get the "we call a guy" reply, and they're at least 10 users...
What happens when your "guy" isn't there?
You have 10+ people twiddling their thumbs, because you have no physical copies of your work, and nobody to get your systems back up.