my biggest reason is that I can't afford hardware to run a recent Windows release. I'm still using XP-level hardware. my own fault for improper budgeting. that being said, XP sucks and I decided that I'd like to be a legitimately-licensed software user. Linux made sense. It runs reasonable well with a light window manager and suits my basic computing needs. If I ever decide to edit video (have tried and failed with linux) I will try out OS X or maybe bite the bullet and get a windows machine. I would hold out as long as possible though. There is nothing appealing about windows to me.