Just to drive the point home. If all of your engineers die in a fiery plane crash en-route to the company offsite, or your datacenter is wiped out in a flood,

Just to drive the point home. If all of your engineers die in a fiery plane crash en-route to the company offsite, or your datacenter is wiped out in a flood, at least you have your statically linked binary that can run on commodity servers somewhere. You have the peace of mind of knowing that your code as built should be able to run somewhere else in its current state without modification. You don't have to worry about the package availability of something that may have been around when you shipped your servers but may not be when you go to ship them again, or something that only coincidentally worked because your systems were installed via a certain upgrade path that's no longer reproducible. It's a simple matter of business risk and minimizing surprises.