A friend of mine uses his PC only in the weekends (he uses the company's PC during the week) and hates Windows because every time it takes hours to download and install updates over his slow ADSL (I think there is no fast Internet there.) He has to remember to turn the PC on in the morning to use it in the afternoon. If he forgets, next weekend. Of course he could turn it on Friday night but the user experience is still really bad.