One of the nice things about Linux - It just works. You don't get random reboots every two weeks when Microsoft decides you must install this particular update, It doesn't get "crufty" the same way the Windows registry does, it doesn't suddenly fail to boot one morning (though in fairness, the fact that we never shut them down probably leads to a bias in that regard). It just works, day after day, year after year. If it worked yesterday and no hardware failed overnight, it will work today.