> just look at how often we see the "Linux means retraining all my users" canard here.
I gave a friend an old laptop with Lubuntu on it. "retraining" consisted of 15 minutes showing the slightly different icons. "This is how you start Libreoffice and this is how you use 'save as' to export in MS format if needed"
Surprisingly, the single biggest selling point was the middle click mouse paste.