The all in one as it is called, is really nice because you only have one cable and that is the power cable, providing you have wireless access. Most of them come with a wireless keyboard and mouse so it is a very neat setup. The only drawback is that if the screen goes bad, it is very expensive to replace. The HP ones come with a 3 year warranty which covers the screen as well as the rest of the machine. If you are buying one with Windows 8, the serial number is now burned into the motherboard instead of having to type it in. You can install Win 7 on it along side the Win 8 so you can switch on boot up. I get mine next week.