because windows will integrate multimedia better in your browser, without having to do a bunch of manual finagling on the command line. or you may get something to work with a generic driver, yet can't use all the features. there can be a lot of options to choose from with linux on getting things to work, and maybe not a lot of advice on what is "best". if you just want to surf the web and such, and play some games, windows is probably a better choice. if you make a living playing with computers and like to program and otherwise futz around with them, then sure, choose a linux. it's getting better with ubuntu, but it may never actually get to an out-of-the-box experience since some of the things you'll need to get all the bells and whistles working can't be distributed in a free package and may not be entirely legal to use where you live.