A couple of people I know currently have computers that are basically unusable because of problems with malware on Windows. I'm thinking of suggesting using Ubuntu to them, but I'm pretty sure they will hate the idea.<p>Of the people I have introduced to to Firefox and OpenOffice.org, some adjust and like using the free software, but some people revert back to IE or go and buy MS Office almost immediately. They seem to just really hate change of any kind.<p>Another example is the number of people complaining every time Facebook changes their UI -- the last two big changes I've been impressed at how well thought-out the changes were, but there was still those groups of people complaining and wanting things to go back to how they used to be.<p>Why do some people persist with what they're used to in spite of annoyances like malware? They've had to change to what they're using now at some stage, so what is it that makes them change? Is it only when something different allows them to do something they couldn't do at all before, like say a Firefox extension? Are these people more "feature driven"?