waste of spaceDon't listen to Officer Wedge (lol),
If you get it chipped properly it won't do any harm, you can download games for it from torrent sites and it'll save you a fortune.
If you have any soldering experience its easy to install yourself, only four or five solder points
Below is a few of the sites selling the chips in the UK
don't bother clicking below the spam link in the next answer.
You don't get something for nothing