A recurring theme in the criticisms -- perhaps the most painfully misanthropic -- is that, since staff are trained to use MS Office, they simply can't figure out Open Office, and everyone who's switched back to MSO from OOO has seen support time and staff frustration drop like a rock. (Of course, going from MS Office 2k3's traditional interface to MS Office 2k8's "Ribbon" caused absolutely no confusion at all!)
But why is this? Why are people trained eat the bread and sip the MS Kool Aid so utterly helpless when faced with an alternative that doesn't look the same?
Well, it's because people with minimal computer skills teach other people with no computer skills that, in order to make this word look blue, you click this button in this place. Not "look for a color changer and select blue". No, it has to be under THIS menu, with THAT name, and looks like THIS button.
We don't teach people how to use computers or even software. We teach them very specific, contextless mundane steps.
What saddens me most is that I was able to document this twelve years ago and it's still the same today.